Log In Log In  |  Checkout   |  216 item(s)
8 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
6 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
4 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
3 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
7 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
7 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
3 x 752, DC Booster Pump w/ Transformer
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x *Discontinued* RO155
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
2 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
4 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
4 x 205, 3rd stage solid carbon block filter (replace every 12month)
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
4 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
7 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
4 x Parts, Ro Water System Installation Parts Bag 1/4"
6 x 205 2nd stage solid carbon block filter (replace every 12 month)
3 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
3 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
6 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
2 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x *Discontinued* RO155C
1 x HK120-P-TK for USA 110V / 60Hz
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x WS-150M, Whole House Water Softener
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x 205, 5th stage final carbon filter
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
3 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x 310, 2nd stage CTA 10 US Membrane filter
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x WT-bac, Water Testing Kit, Bacteria Test
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x *Discontinued* RO585A
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x *Discontinued* RO6ALK
1 x *Discontinued* RD106
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 578, TDS Water Quality Meter tds-3
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1

View Cart$15,458.88
Specials Log InCreate Account Checkout  Shopping Cart216 item(s)
8 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
6 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
4 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
3 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
7 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
7 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
3 x 752, DC Booster Pump w/ Transformer
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x *Discontinued* RO155
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
2 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
4 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
4 x 205, 3rd stage solid carbon block filter (replace every 12month)
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x WH1134 Whole House Restaurant Filter System Sediment Carbon Big
4 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
7 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x WSACF-150T, Whole House Water Treatment ACF-150T
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
4 x Parts, Ro Water System Installation Parts Bag 1/4"
6 x 205 2nd stage solid carbon block filter (replace every 12 month)
3 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x WH-10, Whole House Water Treatment Carbon Filter System 10" Big
3 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
6 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
2 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x *Discontinued* RO155C
1 x HK120-P-TK for USA 110V / 60Hz
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x WS-150M, Whole House Water Softener
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x 205, 5th stage final carbon filter
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
3 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
4 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x 310, 2nd stage CTA 10 US Membrane filter
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x AQF-600-105, Flow Meter Panel Mount 1/2" MPT
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x WT-bac, Water Testing Kit, Bacteria Test
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x *Discontinued* RO585A
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x 4th Stage Color Changing DI Filter SC207 for AR-104H
1 x .K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x *Discontinued* RO6ALK
1 x *Discontinued* RD106
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x 578, TDS Water Quality Meter tds-3
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1

View Cart$15,458.88

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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