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1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
2 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
2 x 214, Clear Inline Filter Cartridge Empty Case
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x KT-103, Optional Manual Membrane Flush Valve
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x CBV-38, Tank Ball Valve to 3/8 tubing
2 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x N-14-1M, Nipple Fitting connector between standard RO housing
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x *Discontinued* RO585
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 719, Drain Saddle Clamp / Valve
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x FRQ420, Flow Restrictor 420ML / min
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Parts, Ro Water System Installation Parts Bag 1/4"
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 752, DC Booster Pump w/ Transformer
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FRQ200, Flow Restrictor 200ML / min
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x FRQ850, Flow Restrictor 850ML / min
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
2 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x *Discontinued* RO585ERP
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x FRQ300, Flow Restrictor 300ML / min
1 x 706, Membrane Filter Casing Housing Assembly
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x 720, Feed Water Adapter with Needle Valve
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)

View Cart$3,406.85
Specials Log InCreate Account Checkout  Shopping Cart80 item(s)
1 x 718TB12, Half Inch Tubing 20 feet 1/2" LLDPE PE White Tube
2 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
2 x 214, Clear Inline Filter Cartridge Empty Case
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x .K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x KT-103, Optional Manual Membrane Flush Valve
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x .K5NTF KoolerMax K5 RO System Shell without tank and faucet
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x CBV-38, Tank Ball Valve to 3/8 tubing
2 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x N-14-1M, Nipple Fitting connector between standard RO housing
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x *Discontinued* RO585
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 719, Drain Saddle Clamp / Valve
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
2 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x FRQ420, Flow Restrictor 420ML / min
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water
1 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x Parts, Ro Water System Installation Parts Bag 1/4"
3 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x NM-5104, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 752, DC Booster Pump w/ Transformer
2 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x FRQ200, Flow Restrictor 200ML / min
1 x 717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x FRQ850, Flow Restrictor 850ML / min
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
2 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x *Discontinued* RO585ERP
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x FRQ300, Flow Restrictor 300ML / min
1 x 706, Membrane Filter Casing Housing Assembly
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x 720, Feed Water Adapter with Needle Valve
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)

View Cart$3,406.85

ACHV, Check Valve Inline Type [ACHV]

$9.00

ACHV, Check Valve Inline Type



* ACHV, Check Valve Inline Type

* Please choose size from the selection box below. Both numbers are tubing OD Outside Diameter. First number is Tube in and second number is Tube out. (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 ACHV0404
* 3/8" Tube OD x 3/8" Tube OD ACHV0606
* 1/2" Tube OD x 1/2" Tube OD ACHV0707


* 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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