1 1/2" Water Manifolds
1 1/2" Water Manifolds. 1 1/2" plumbing fittings doesn't actual measure 1 1/2" it measures 1 7/8" Inside diameter on a slip fitting and 1 7/8" outside diameter on a street fitting.
To figure out what size manifold you need look at the chart below for size conversions.
This is a chart for the outside of your plumbing pipes so you can figure out what size parts to order. Note: The actual size a part is called is not the actual size of the hole in the part it is really the Inside Diameter of the pipe that would glue into that part which doesn’t make sense, since you cannot see inside the pipe. Therefore I am giving you the measurements of the outside of the pipe so you know what size part to order. For example a part that is ½” plumbing would glue into would actually measure ¾” inside the hole of the part and on the outside of the pipe that glues into the part.
Pipe Outside Diameter chart:
½” Outside Diameter is ¾”
¾” Outside Diameter is 1”
1” Outside Diameter is 1 ¼”
I have never seen 1 ¼” in Hot Tubs
1 ½” Outside Diameter is 1 â…ž”
2” Outside Diameter is 2 â…ś”
2 ½” Outside Diameter is 2 â…ž”
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Manifold, 3/8" Barb, 6 Port, Flow Thru, 1-1/2"s x 1-1/2"spg
MSRP: $24.99$18.99This part is a Manifold that features (6) 3/8" Barbs and is Flow Thru, 1-1/2"slip x 1-1/2"spigot.. To plug the barbs you can use these plugs: Barb Plug 3/8" Slip for Air Manifold and more Waterway Set of (3) Barb Plugs 3/8" Slip for Air Manifold and...MSRP: $24.99$18.99 -
Air Manifold, 3/8" Barb, 10 Port, Flow Thru, 1-1/2" Slip x 1-1/2" Spigot
MSRP: $24.99$19.99This part is a 10 Port Air Manifold that is 1-1/2" Slip x 1-1/2"Street with (10) 3/8" Slip Barbs. The 1 1/2" Slip end accepts a pipe or fitting that would measure about 1 7/8" OD and the Street end measures about 1 7/8" OD and would gleu inside of a 1...MSRP: $24.99$19.99