Log In Log In  |  Checkout   |  93 item(s)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 720, Feed Water Adapter with Needle Valve
2 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
2 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
2 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 719, Drain Saddle Clamp / Valve
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
2 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 723, Feed Water Adapter with Ball Valve
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)

View Cart$2,008.93
Specials Log InCreate Account Checkout  Shopping Cart93 item(s)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x MK8002, Maintenance kit for double membrane system RD322 RO260
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x 720, Feed Water Adapter with Needle Valve
2 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
2 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
2 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x SC207, Specialty Filter Refillable Color Changing DI Filter for
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x 719, Drain Saddle Clamp / Valve
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
2 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
2 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x CBV-38, Tank Ball Valve to 3/8 tubing
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x 723, Feed Water Adapter with Ball Valve
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)

View Cart$2,008.93

ARD, Reducer Fitting Straight Tube OD Stem OD [ARD]

$3.50

ARD, Reducer Fitting Straight Tube OD Stem OD



* ARD, Reducer Fitting Straight Tube OD Stem OD

* Please choose size from the selection box below. First number is tubing OD and second number is Stem 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 3/8" Stem OD ARD0406
* 3/8" Tube OD x 1/2" Stem OD ARD0607


* 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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