Pipe Sizes and Why They Are So Confusing

Catalina Direct, publishers of the Catalina 22 and Catalina 25 Owner

Seacock 1 Flush, Straight Hose Barb

Seacock 1-1/2 Flush, 90 Degree Hose Barb Left

Holding Tank for C-310

Pipe Sizes and Why They Are So Confusing

Hose Barb Elbow, 5/8 x 1/2 NPSM

Holding Tank for C-375

Water Tank for C-28

Exhaust Flange Circular, B Series Engine

Holding Tank CP-26, C-25 Dinette, C-250, C-27 Dinette

Holding Tank for C-350

Water Tank, C-34 mkI

Water Tank C-42

Quick Connect 15mm Female Tube x 1/2 Female Thread

Aqua Lift Muffler Drain Valve, 1/4

U.S. and International Threaded Connection Standards – Dwyer Instruments Blog

NPT (National Pipe Taper) Thread, Determination – Thread Types, Screw Joints, Technical information

Stainless Steel Pipe Thread Adapter - 1/4 MNPT (LHT) x 1/4 FNPT (RHT)

Hydraulic Fitting Thread Chart

NPSC, Staright Pipe Thread - Machining Doctor