![GROCO Thru-Hull Installation Tool [THT-530] Anchoring & Docking | Anchoring Accessories expanded menu navigation](https://cdn.shopify.com/s/files/1/0746/2456/5549/files/75342XL.jpg?v=1705801005)
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multi-transistor SeaTalk 1 interface
ULTIMA switch is rated to handle all Johnson Pump submersible pumps pumps up to 20 amps at 12 or 24 volts
Interconnects with standard RCA cables and plugs into the auxiliary input on a source
"A": 5/32"
GROCO Thru-Hull Installation Tool [THT-530] Anchoring & Docking | Anchoring Accessories expanded menu navigationThru 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