Guidi Brass Thru-Hull Connection 1 1/4 in SKIN FITTING 

Premium quality Guidi thru-hull made from brass.

Brass alloys contain higher levels of zinc and therefore are more suited to above waterline and fresh water applications. 

• Thread : G = ISO 228/1 (BS 2779) BSP Compliant with UNI EN ISO 9093-1 RINA Validated
• All thru-hull fittings should be electrically bonded to help prevent galvanic corrosion. See 1145 series for bonding washers & terminals