Forespar 251 Marelon Threaded Mushroom-Head Thru-Hull with Nut

Forespar 251 Series Marelon Thru-Hull

White Marelon mushroom-head thru-hull with full NPSM threads and nut. Select the nominal thread size required for the installation. Each quantity is one thru-hull with nut.

• 906010: 1/2 in NPSM
• 906012: 3/4 in NPSM
• 906014: 1 in NPSM
• 906016: 1-1/4 in NPSM
• 906018: 1-1/2 in NPSM
• 906020: 2 in NPSM

These are unscreened 251-series fittings. Verify thread compatibility, hull thickness and model dimensions, and follow Forespar’s installation instructions and bedding recommendations. Thread size is nominal and is not the hull cutout diameter.

Representative fitting shown; dimensions follow the selected model.