Log In Log In  |  Checkout   |  209 item(s)
4 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
4 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
4 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
3 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
4 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x 913, 5th stage inline carbon filter (every 12 months)
3 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
2 x 214, Clear Inline Filter Cartridge Empty Case
2 x 706, Membrane Filter Casing Housing Assembly
5 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
2 x EMT-10, Empty Filter Cartridge Casing Housing
2 x Optional: 564 Membrane Filter Housing Wrench Opener
5 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
5 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x Special, Single Stage Housing Bracket Shell Connection Kit
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
3 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
2 x 723, Feed Water Adapter with Ball Valve
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
2 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
2 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
2 x 720, Feed Water Adapter with Needle Valve
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
2 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x 741-14, Diverter Valve for Countertop Water Units
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
2 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
2 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x KT-103, Optional Manual Membrane Flush Valve
2 x 741-38, Diverter Valve for RO DI Water Systems
2 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x FRQ850, Flow Restrictor 850ML / min
2 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
2 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
3 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x Special Filter Kit Koolermax dealer distribution kit
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x 752, DC Booster Pump w/ Transformer
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
2 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x FRQ420, Flow Restrictor 420ML / min
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x 578, TDS Water Quality Meter tds-3
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x WS-150M, Whole House Water Softener
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)

View Cart$8,611.40
Specials Log InCreate Account Checkout  Shopping Cart209 item(s)
4 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
4 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
4 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
3 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
4 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
2 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x 913, 5th stage inline carbon filter (every 12 months)
3 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
2 x 214, Clear Inline Filter Cartridge Empty Case
2 x 706, Membrane Filter Casing Housing Assembly
5 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
2 x EMT-10, Empty Filter Cartridge Casing Housing
2 x Optional: 564 Membrane Filter Housing Wrench Opener
5 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
5 x 201, 1st stage sediment filter (replace every 6-12 months)
2 x Special, Single Stage Housing Bracket Shell Connection Kit
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
3 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
2 x 723, Feed Water Adapter with Ball Valve
1 x SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
2 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
2 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
2 x 720, Feed Water Adapter with Needle Valve
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
2 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x 741-14, Diverter Valve for Countertop Water Units
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
2 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
2 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x KT-103, Optional Manual Membrane Flush Valve
2 x 741-38, Diverter Valve for RO DI Water Systems
2 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x FRQ850, Flow Restrictor 850ML / min
2 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
2 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
3 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x Special Filter Kit Koolermax dealer distribution kit
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x 752, DC Booster Pump w/ Transformer
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
2 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x FRQ420, Flow Restrictor 420ML / min
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x 578, TDS Water Quality Meter tds-3
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x WS-150M, Whole House Water Softener
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)

View Cart$8,611.40

AUC Union Connector OD Quick Connect QC Fitting [AUC]

$3.00

AUC Union Connector OD Quick Connect QC Fitting



* AUC, Union Connector, Quick Connect type

* Please choose size from the selection box below. Both numbers are tubing OD Outside Diameter (Pipe sizes can be confusing even for the experienced user. Pipe size is not the actual outside or inside diameter of the pipe but is the industry accepted designation. If you have any question please email us first.)
* 1/4" Tube OD x 1/4" Tube OD AUC0404
* 3/8" Tube OD x 1/4" Tube OD AUC0604
* 3/8" Tube OD x 3/8" Tube OD AUC0606
* 1/2" Tube OD x 3/8" Tube OD AUC0706
* 1/2" Tube OD x 1/2" Tube OD AUC0707


* Water & foods use: Products are manufactured from safe, non-toxic materials meeting the requirements of the US FDA, ERAS, ANSI/NSF-51,61, and SK Zert. Our products are widely used in water purification, food/beverage, and pneumatic systems.

* Function & Quality: Provides quick and convenient assembly-saving time & expense.

* Collet Design: Our unique oval collet design is superior and more practical, and is an improvement welcomed by our world wide customers in all industries.

* Additional Applications: Beyond water and food use, fittings can be used with air, gases, vacuum, & liquids. All connections can be assembled & disassembled repeatedly. A broad range of sizes covers a broad scope of applications.

* We carry different fittings in variation of sizes: 1/4", 3/8", or 1/2" adapters, connectors, fittings, or valves.  Most are not listed online, to avoid confusion to majority of RO system customers.  

* Send us a message with specification, intended application, and image of your setup or old fitting  to check if we have what you need. 

Available Options:

Size Combination:

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