Log In Log In  |  Checkout   |  87 item(s)
1 x bulksf05, Koolermax Sediment Filter
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 214, Clear Inline Filter Cartridge Empty Case
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
2 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 719, Drain Saddle Clamp / Valve
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x bulk213, Inline Carbon Filter
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x *Discontinued* RO155C
2 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x WS-150M, Whole House Water Softener
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
3 x 201, 1st stage sediment filter (replace every 6-12 months)
4 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x HK120-P-TK-220V for EURO 220V / 50Hz
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x 205, 5th stage final carbon filter
1 x bulkc10, Koolermax Carbon Block Filter
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x 723, Feed Water Adapter with Ball Valve
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 706, Membrane Filter Casing Housing Assembly
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
View Cart$6,570.06
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Specials Log InCreate Account Checkout  Shopping Cart87 item(s)
1 x bulksf05, Koolermax Sediment Filter
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
3 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
2 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
3 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x 214, Clear Inline Filter Cartridge Empty Case
2 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
2 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5
2 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x 719, Drain Saddle Clamp / Valve
1 x KT-103, Optional Manual Membrane Flush Valve
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x bulk213, Inline Carbon Filter
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
3 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
2 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x *Discontinued* RO155C
2 x Optional: 564 Membrane Filter Housing Wrench Opener
2 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x WS-150M, Whole House Water Softener
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
3 x 201, 1st stage sediment filter (replace every 6-12 months)
4 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x HK120-P-TK-220V for EURO 220V / 50Hz
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x 205, 5th stage final carbon filter
1 x bulkc10, Koolermax Carbon Block Filter
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x 723, Feed Water Adapter with Ball Valve
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x 316, 2nd stage CTA 16 US Membrane filter
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x 706, Membrane Filter Casing Housing Assembly
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x SV-24AC-14, Solenoid Valve for Aquatec pump only 1/4" 24VAC ESO
View Cart$6,570.06

FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch [FPK-AUC0706]

$19.95

FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch

Quantity

 

Description

 

 

6

Union Connector, 1/2" to 3/8"

part# AUC 0706

 



 

 

* 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. 

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