GROCO Thru-Hull Installation Tool [THT-530] Marine Hardware | Pedestals The BLASTER II Series wash

The BLASTER II Series wash down automatic demand pumps are thermally protected and can run dry without damage

Single Chirp Transducers

Pitot tube type speedometers operate by pressure from the water being forced into the pitot tube

Kuuma Model 58155 (Elite 216)

once the included Flush Mounting Kit has been installed

GROCO Thru-Hull Installation Tool [THT-530] Marine Hardware | Pedestals The BLASTER II Series washThru 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 proper step.) Tie a length of monofilament to the eye and place it into the already cut hole in the hull of the boat. Apply caulking to the flange of the fitting, and pull the fitting through the hole