I have two 1 1/2 inch thru-hull fittings including the retaining nuts. They are Apollo by Conbraco brand. One was installed for demonstration purposes then removed, the other was never installed. Neither have seen water
. Defender has these on sale
right now for $38. each. You can buy these two for $45. plus shipping
, ($12.35 to the lower 48) so your total cost for two will be $57.35. I will take paypal. Thanks!