Overall O.D. 23.2mm. Fits 2-hole 19mm (Approx. 3/4") tank hole
For I.D x O.D: 3mm x5mm (Approx. 1/8" x 3/16") fuel lines
Compatible with chainsaw trimmer brush cutter lawn mower weadeater grass wacker sting trimmer tiller.
Qty: 5pcs Rubber Grommet.