Log In Log In  |  Checkout   |  72 item(s)
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x *Discontinued* RD102
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 720, Feed Water Adapter with Needle Valve
2 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
2 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
2 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x FRQ200, Flow Restrictor 200ML / min
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x 741-38, Diverter Valve for RO DI Water Systems
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x *Discontinued* RO155C
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x HK120-P-TK for USA 110V / 60Hz
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO

View Cart$3,225.99
Specials Log InCreate Account Checkout  Shopping Cart72 item(s)
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x *Discontinued* RD102
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 720, Feed Water Adapter with Needle Valve
2 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
2 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
2 x SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x FRQ200, Flow Restrictor 200ML / min
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x 741-38, Diverter Valve for RO DI Water Systems
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x *Discontinued* RO155C
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x HK120-P-TK for USA 110V / 60Hz
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
2 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 6th Stage pn215 Refillable inline DI filter (color change)
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO

View Cart$3,225.99

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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