- Made of lightweight 6061 alloy aluminum - Designed for smooth flow easy assembly - Compatible with all NPT adapter fittings - Anodized coating  Blue -Simple, easy to order and Made in USA!!

Female NPT Couplers Part Number Description List 910-02D 1/4" NPT Pipe Thread Coupler - Anodized $5.99 910-03D 3/8" NPT Pipe Thread Coupler - Anodized $7.49 910-04D 1/2" NPT Pipe Thread Coupler - Anodized $9.99