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4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x *Discontinued* RO585NTF
4 x 2nd stage C10 carbon block filter (replace every 6-12 months)
4 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x DI210, Heavy-duty DI system for Aquarium and Reef
3 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
2 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
2 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x Special, Single Stage Housing Bracket Shell Connection Kit
7 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
5 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
2 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
8 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x KT-103, Optional Manual Membrane Flush Valve
2 x SC207, Specialty Filter Refillable Color Changing DI Filter for
4 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
4 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
3 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
3 x 3rd stage C10 carbon block filter (replace every 6-12 months)
4 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
5 x 1st stage SF05 sediment filter (replace every 6-12 months)
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
3 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
2 x *Discontinued* RD106
1 x *Discontinued* RD102
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
4 x 752, DC Booster Pump w/ Transformer
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x *Discontinued* RD150
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x *Discontinued* RO585ERP
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 578, TDS Water Quality Meter tds-3
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 6th Stage pn215 Refillable inline DI filter (color change)
3 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
3 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x MKP, Maintenance kit for K5150P K6150P AR150P
4 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
5 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x 741-14, Diverter Valve for Countertop Water Units
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
2 x DB40, DI Resin Refill Bag for DI210, RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x *Discontinued* RO6ALK
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x *Discontinued* RO585A
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x FRQ300, Flow Restrictor 300ML / min
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
View Cart$10,836.93
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4 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x *Discontinued* RO585NTF
4 x 2nd stage C10 carbon block filter (replace every 6-12 months)
4 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x DI210, Heavy-duty DI system for Aquarium and Reef
3 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
3 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x .K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
2 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
2 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
3 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x Special, Single Stage Housing Bracket Shell Connection Kit
7 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
5 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
2 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
8 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x KT-103, Optional Manual Membrane Flush Valve
2 x SC207, Specialty Filter Refillable Color Changing DI Filter for
4 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 225UP, 5th stage Inline Alkaline upgrade (includes media)
4 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
3 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x UU Clips Pair Membrane to Filter, 2.5" to 2"
3 x 3rd stage C10 carbon block filter (replace every 6-12 months)
4 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SC209, Specialty Filter Nitrate Removal Filter
1 x FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
5 x 1st stage SF05 sediment filter (replace every 6-12 months)
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
3 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
2 x *Discontinued* RD106
1 x *Discontinued* RD102
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
4 x 752, DC Booster Pump w/ Transformer
1 x .K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
2 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x *Discontinued* RD150
3 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x *Discontinued* RO585ERP
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 578, TDS Water Quality Meter tds-3
1 x UU Clips Pair from Bracket to Membrane Filter
1 x 6th Stage pn215 Refillable inline DI filter (color change)
3 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
3 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x MKP, Maintenance kit for K5150P K6150P AR150P
4 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
5 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x 741-14, Diverter Valve for Countertop Water Units
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
2 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x .K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x 5th Stage pn215 Refillable inline DI filter (color change)
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
2 x DB40, DI Resin Refill Bag for DI210, RD322
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x *Discontinued* RO6ALK
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x 671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x NM-5103, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x *Discontinued* RO585A
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
2 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x FRQ300, Flow Restrictor 300ML / min
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
View Cart$10,836.93

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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