Thru-Hull Fittings

Plastic Thru-Hull Fitting - 1-1/2" - White These thru-hulls are made with a durable, thermoplastic construction which prevents electrolysis. Caution: Thru-Hull connectors are designed for installation above the water line only. Specifications: Fits Hose Size: 1-1/2" I.D. Stem Length: 3-1/2" Max. Hull Thickness: 1-1/4" Flange Diameter: 3" Installation Hose Size: 1-7/8" to 2" Construction: Polypropylene WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

3/4" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze

1" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze

1-1/2" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze

Rule 59 Thru-Hull Fitting 1 1/2"  

Rule 60 Thru-Hull Fitting 1 1/8  

Rule 61S Thru-Hull Fitting 3/4" Strt  

Rule 62 Thru-Hull Fitting 5/8" 90^  

1-1/2" 90 Degree Hose Thru-Hull Fitting  Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B

2-1/2" Bronze Thru-Hull Fitting with Nut Higher flow rates are possible with this 2-1/2" GROCO thru-hull fitting than conventional thru-hulls. Features: NPSM / NPT combination thread C83600 Bronze UL listed 647B Includes nut  BSPP and stainless steel models are available Specifications: Thread NPS: 2-1/2"

3" Bronze Thru-Hull Fitting with Nut Higher flow rates are possible with this 3" GROCO thru-hull fitting than conventional thru-hulls. Features: NPSM / NPT combination thread C83600 Bronze UL listed 647B Includes nut  BSPP and stainless steel models are available Specifications: Thread NPS: 3"

Perko 1/2" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technical Information: Pipe Size Inches: 1/2 Mouting Hole Diameter Inches: 13/16 Maximum Hull Thickness Inches: 1-3/8 O.D. Flange Inches: 1-1/2 Model Number: 0322DP4PLB Ship Weight: 1.8/7.9 lbs. MADE IN THE USA

Perko 3/4" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technical Information: Pipe Size Inches: 3/4 Mouting Hole Diameter Inches: 1 Maximum Hull Thickness Inches: 1-1/2 O.D. Flange Inches: 1-7/8 Model Number: 0322DP5PLB Ship Weight: 2.4/11.6 lbs. MADE IN THE USA

Perko 1" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technical Information: Pipe Size Inches: 1 Mouting Hole Diameter Inches: 1-5/16 Maximum Hull Thickness Inches: 1-7/8 O.D. Flange Inches: 2-3/16 Model Number: 0322DP6PLB Ship Weight: 4.1/18.0 lbs. MADE IN THE USA