Straight Through Quick Connect Air Couplings

Chasing max flow with less pressure drop? Straight-through quick connect couplers and nipples keep an open bore for pressure washers, steam cleaners and coolant or washdown lines. Choose brass for everyday corrosion resistance or 303 stainless for tougher environments. No auto shutoff, so stop flow and depressurize before you disconnect.

20 results

Straight Through Couplers

Straight Through Female Nipples

Straight Through Male Nipples

Stainless Steel Straight Through Couplers

Stainless Steel Straight Through Female Nipples

Stainless Steel Straight Through Male Nipples

Straight Through Couplers

Straight through couplers in brass with threaded NPT ends and smooth bore for unrestricted liquid or gas flow. Available in male and female styles with standard NPT thread sizes and 2,700 psi maximum pressure. Ideal for pressure washing and industrial fluid connections.

Body Size: 1/4"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/4"-18	External	NPT	2,700 psi	Brass	1	52687	Log in to view price
1/4" x 1/4" MPT Brass Straight Through Male Coupler Item #: 52687 Package Weight: 0.2 lbs View Product Details Log in to Order
1/4"-18	Internal	NPT	2,700 psi	Brass	1	52682	Log in to view price
1/4" x 1/4" FPT Brass Straight Through Female Coupler Item #: 52682 Package Weight: 0.2 lbs View Product Details Log in to Order

Body Size: 3/8"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
3/8"-18	External	NPT	2,700 psi	Brass	1	52688	Log in to view price
3/8" x 3/8" MPT Brass Straight Through Male Coupler Item #: 52688 Package Weight: 0.3 lbs View Product Details Log in to Order
3/8"-18	Internal	NPT	2,700 psi	Brass	1	52683	Log in to view price
3/8" x 3/8" FPT Brass Straight Through Female Coupler Item #: 52683 Package Weight: 0.3 lbs View Product Details Log in to Order

Body Size: 1/2"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/2"-14	External	NPT	2,700 psi	Brass	1	52689	Log in to view price
1/2" x 1/2" MPT Brass Straight Through Male Coupler Item #: 52689 Package Weight: 0.4 lbs View Product Details Log in to Order
1/2"-14	Internal	NPT	2,700 psi	Brass	1	52684	Log in to view price
1/2" x 1/2" FPT Brass Straight Through Female Coupler Item #: 52684 Package Weight: 0.4 lbs View Product Details Log in to Order

Body Size: 3/4"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
3/4"-14	Internal	NPT	2,700 psi	Brass	1	52685	Log in to view price
3/4" x 3/4" FPT Brass Straight Through Female Coupler Item #: 52685 Package Weight: 0.7 lbs View Product Details Log in to Order

Straight Through Female Nipples

Straight through female nipples made of brass with internal NPT threads and a smooth bore that permits free flow of liquid or gas. Rated to 2,700 psi and −40 °F to 250 °F, they resist corrosion and help maintain flow in pressure washer and industrial cleaning applications.

Body Size: 1/4"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/4"-18	Internal	NPT	2,700 psi	Brass	5	52692	Log in to view price
1/4" x 1/4" FPT Brass Straight Through Female Nipple (Plug) - 5 Pack Item #: 52692 Package Weight: 0.4 lbs View Product Details Log in to Order

Body Size: 3/8"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
3/8"-18	Internal	NPT	2,700 psi	Brass	1	52693	Log in to view price
3/8" x 3/8" FPT Brass Straight Through Female Nipple (Plug) Item #: 52693 Package Weight: 0.2 lbs View Product Details Log in to Order

Body Size: 1/2"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/2"-14	Internal	NPT	2,700 psi	Brass	1	52694	Log in to view price
1/2" x 1/2" FPT Brass Straight Through Female Nipple (Plug) Item #: 52694 Package Weight: 0.3 lbs View Product Details Log in to Order

Body Size: 3/4"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
3/4"-14	Internal	NPT	2,700 psi	Brass	1	52695	Log in to view price
3/4" x 3/4" FPT Brass Straight Through Female Nipple (Plug) Item #: 52695 Package Weight: 0.4 lbs View Product Details Log in to Order

Straight Through Male Nipples

Straight through male nipples made of brass with threaded NPT external ends. Smooth bore provides free flow of liquid or gas and 2,700 psi maximum pressure helps high pressure cleaning applications. No automatic shut-off so flow must be stopped before disconnecting.

Body Size: 1/4"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/4"-18	External	NPT	2,700 psi	Brass	5	52697	Log in to view price
1/4" x 1/4" MPT Brass Straight Through Male Nipple (Plug) - 5 Pack Item #: 52697 Package Weight: 0.3 lbs View Product Details Log in to Order

Body Size: 3/8"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
3/8"-18	External	NPT	2,700 psi	Brass	1	52698	Log in to view price
3/8" x 3/8" MPT Brass Straight Through Male Nipple (Plug) Item #: 52698 Package Weight: 0.1 lbs View Product Details Log in to Order

Body Size: 1/2"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/2"-14	External	NPT	2,700 psi	Brass	1	52699	Log in to view price
1/2" x 1/2" MPT Brass Straight Through Male Nipple (Plug) Item #: 52699 Package Weight: 0.2 lbs View Product Details Log in to Order

Stainless Steel Straight Through Couplers

Stainless steel straight through couplers machined from 303 stainless steel for smooth open bore flow and low pressure drop. Internal NPT threads and no automatic shutoff so flow must stop before disconnecting. Resists shock and suits pressure washers, steam and fluid transfer.

Body Size: 1/4"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/4"-18	Internal	NPT	6,700 psi	303 Stainless Steel	1	521015	Log in to view price
1/4" x 1/4" FPT Stainless Steel Straight Through Female Coupler Item #: 521015 Package Weight: 0.2 lbs View Product Details Log in to Order

Body Size: 3/8"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
3/8"-18	Internal	NPT	5,500 psi	303 Stainless Steel	1	521016	Log in to view price
3/8" x 3/8" FPT Stainless Steel Straight Through Female Coupler Item #: 521016 Package Weight: 0.3 lbs View Product Details Log in to Order

Stainless Steel Straight Through Female Nipples

Stainless steel straight-through female nipples machined from 303 stainless steel with internal NPT threads and smooth open bore for maximum flow. The straight-through interface reduces pressure drop and resists shock and damage. Suitable for fluid transfer and cleaning equipment.

Body Size: 1/4"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/4"-18	Internal	NPT	6,700 psi	303 Stainless Steel	1	521017	Log in to view price
1/4" x 1/4" FPT Stainless Steel Straight Through Female Nipple (Plug) Item #: 521017 Package Weight: 0.1 lbs View Product Details Log in to Order

Body Size: 3/8"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
3/8"-18	Internal	NPT	5,500 psi	303 Stainless Steel	1	521019	Log in to view price
3/8" x 3/8" FPT Stainless Steel Straight Through Female Nipple (Plug) Item #: 521019 Package Weight: 0.2 lbs View Product Details Log in to Order

Stainless Steel Straight Through Male Nipples

Stainless steel straight-through male nipples machined from 303 stainless offer a smooth open bore for maximum flow and low pressure drop. Threaded NPT ends provide secure connections and the robust solid-bar construction resists shock and damage for industrial fluid transfer.

Body Size: 1/4"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/4"-18	External	NPT	6,700 psi	303 Stainless Steel	1	521018	Log in to view price
1/4" x 1/4" MPT Stainless Steel Straight Through Male Nipple (Plug) Item #: 521018 Package Weight: 0.1 lbs View Product Details Log in to Order

Body Size: 3/8"

Thread Size	Thread Type	Measurement Type	Maximum Pressure	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
3/8"-18	External	NPT	5,500 psi	303 Stainless Steel	1	521020	Log in to view price
3/8" x 3/8" MPT Stainless Steel Straight Through Male Nipple (Plug) Item #: 521020 Package Weight: 0.1 lbs View Product Details Log in to Order