I have 6 Groco bronze thru-hulls surplus to needs.  They are rubber cone-type, not ball valves, as follows, and all but one are brand new.

Groco SV 1500 (2 new, 1 used) -- $350 each new, $150 used

Groco SV 1250 (1 new) -- $200

Groco SV 500 (2 new) -- $150

One rubber cone with handle (1.25” diameter cone with 0.75” hole) -- $100

Rubbers have been stored well lubricated and uncompressed.  Prices do not include shipping.

Enquiries:  (214) 770-0972