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	FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x	SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x	KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x	.K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x	PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
3 x	752, DC Booster Pump w/ Transformer
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
3 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	SW SHELL, Countertop SW1 Empty System Only No Filter
1 x	ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
2 x	Optional: 564 Membrane Filter Housing Wrench Opener
2 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	Discontinued RO585
2 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
2 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x	741-38, Diverter Valve for RO DI Water Systems
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	205, 2nd stage carbon block filter (replace every 12 months)
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x	WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x	756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x	SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x	204, 2nd stage GAC filter (replace every 6-12 months)
1 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	709, Automatic Shut Off Valve 4-way Four Way Valve
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	FRQ300, Flow Restrictor 300ML / min
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x	PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x	PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x	720, Feed Water Adapter with Needle Valve
1 x	TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x	335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block

View Cart	$4,352.88

1 x	FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x	SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x	KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x	.K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x	PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
3 x	752, DC Booster Pump w/ Transformer
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
3 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	SW SHELL, Countertop SW1 Empty System Only No Filter
1 x	ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
2 x	Optional: 564 Membrane Filter Housing Wrench Opener
2 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	Discontinued RO585
2 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
2 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x	741-38, Diverter Valve for RO DI Water Systems
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	205, 2nd stage carbon block filter (replace every 12 months)
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x	WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x	756SET, Aquatec Permeate Pump Reverse Osmosis System ERP1000
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x	SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x	204, 2nd stage GAC filter (replace every 6-12 months)
1 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	709, Automatic Shut Off Valve 4-way Four Way Valve
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	FRQ300, Flow Restrictor 300ML / min
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
1 x	PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x	PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x	720, Feed Water Adapter with Needle Valve
1 x	TMR-DC-1212, Transformer Power Supply for Delivery Demand Pump
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x	335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block

View Cart	$4,352.88