Sonar

3/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features:Extra long NPSM / NPT combination thread#316 Stainless Steel

3/4" Bronze Extra Long Thru-Hull Fitting w/Nut Features:Extra long NPSM / NPT combination threadC83600 Bronze

2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features:Extra long NPSM / NPT combination thread#316 Stainless Steel

2" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze

1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel

1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut Features:Extra long NPSM / NPT combination threadC83600 Bronze

1-1/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features:Extra long NPSM / NPT combination thread#316 Stainless Steel

1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze

1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features:Extra long NPSM / NPT combination thread#316 Stainless Steel

1" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze

Thru-Hull Installation Tool Thru Hull Installation Tool The Concept: THT-530 makes the installation of standard GROCO thru-hull fittings possible by a single installer. Slide the thru-hull fitting, flanged end first, over the tool. (It will stop at the...

3/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL Listed 647B BSPP and Stainless Steel models available