ABU, Bulkhead Union Connector [ABU]

$4.50

* ABU, Bulkhead Union Connector

* Please choose size from the selection box below. First number is tubing OD Outside Diameter and second number is NPT National Pipe Thread. (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" NPTF Thread ABU0404
* 1/4" Tube OD x 3/8" NPTF Thread ABU0406
* 3/8" Tube OD x 1/4" NPTF Thread ABU0604
* 3/8" Tube OD x 3/8" NPTF Thread ABU0606
* 1/2" Tube OD x 1/2" NPTF Thread ABU0707

* 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:

Reviews

1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x	PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	EMT-10, Empty Filter Cartridge Casing Housing
2 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	578, TDS Water Quality Meter tds-3
3 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x	WH-10, Whole House Water Treatment Carbon Filter System 10" Big
2 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x	335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	2nd stage C10 carbon block filter (replace every 6-12 months)
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x	FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x	SW SHELL, Countertop SW1 Empty System Only No Filter
1 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x	6044-combo Compression Type Fitting Elbow and Tee fitting
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x	Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x	3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x	2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	565, Digital Pressure Gauge Tester Monitor
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	DI210, Heavy-duty DI system for Aquarium and Reef
1 x	721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	709, Automatic Shut Off Valve 4-way Four Way Valve
2 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	752, DC Booster Pump w/ Transformer
1 x	SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x	3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
2 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x	FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x	SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x	UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x	MK8002, Maintenance kit for double membrane system RD322 RO260
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	225UP, 5th stage Inline Alkaline upgrade (includes media)

View Cart	$3,787.17

1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x	PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	EMT-10, Empty Filter Cartridge Casing Housing
2 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	578, TDS Water Quality Meter tds-3
3 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x	WH-10, Whole House Water Treatment Carbon Filter System 10" Big
2 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x	335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	2nd stage C10 carbon block filter (replace every 6-12 months)
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x	FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x	SW SHELL, Countertop SW1 Empty System Only No Filter
1 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x	6044-combo Compression Type Fitting Elbow and Tee fitting
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x	Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x	3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x	2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	565, Digital Pressure Gauge Tester Monitor
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	DI210, Heavy-duty DI system for Aquarium and Reef
1 x	721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	709, Automatic Shut Off Valve 4-way Four Way Valve
2 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	752, DC Booster Pump w/ Transformer
1 x	SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x	3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
2 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x	FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x	SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x	UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x	MK8002, Maintenance kit for double membrane system RD322 RO260
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	225UP, 5th stage Inline Alkaline upgrade (includes media)

View Cart	$3,787.17