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1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x FRQ300, Flow Restrictor 300ML / min
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
3 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x CDP6800, AQUATEC CDP6800 Booster Pump Only 6840-2J03-B224
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x MK420, Maintenance kit for RO565
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
4 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
2 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x *Discontinued* RD150
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x 706, Membrane Filter Casing Housing Assembly
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
2 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 752, DC Booster Pump w/ Transformer
2 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 741-14, Diverter Valve for Countertop Water Units
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x 719, Drain Saddle Clamp / Valve
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 214, Clear Inline Filter Cartridge Empty Case

View Cart$5,854.85
Specials Log InCreate Account Checkout  Shopping Cart118 item(s)
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x .AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x FRQ300, Flow Restrictor 300ML / min
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x .SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
3 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x CDP6800, AQUATEC CDP6800 Booster Pump Only 6840-2J03-B224
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x MK420, Maintenance kit for RO565
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
4 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x 385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x 205, 3rd stage solid carbon block filter (replace every 12 month
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
2 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
3 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x *Discontinued* RD150
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x 706, Membrane Filter Casing Housing Assembly
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
2 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
2 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x AQUATEC 8852-2J03-B424 High Flow Booster Pump 110V Transformer
1 x BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x .RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x 752, DC Booster Pump w/ Transformer
2 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x CDP8800, AQUATEC CDP8852-2J03-B424 Booster Pump Only Fitting
1 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 741-14, Diverter Valve for Countertop Water Units
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x Aeroponics HighPressure Booster Pump Aquatec CDP5853 Transformer
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x 719, Drain Saddle Clamp / Valve
1 x UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 214, Clear Inline Filter Cartridge Empty Case

View Cart$5,854.85

AHUC, Inline Ball Hand Valve Union Connector OD Tubing [AHUC]

$5.00

AHUC, Inline Ball Hand Valve Union Connector OD Tubing



* AHUC, Inline Ball Valve or Hand Valve Union Connector

* Position "Close" to force the water to flow to long reach faucet directly

* Position "Open" to allow the water flow in/out the water tank

* 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 AHUC0404
* 3/8" Tube OD x 3/8" Tube OD AHUC0606
* 1/2" Tube OD x 1/2" Tube OD AHUC0707


* 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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