Attwood Seat Base

The Attwood 9 Inch Round Snap-Lock Seat Base is made of non-corrosive bright-anodized aluminum and is part of Attwood's "Snap-Lock" series which means the components snap together tightly. This 1.77 inch seat base will fit any 2.75 inch diameter mounting hole (Attwood or even the competition) and has an ABYC code of "AO".