It also replaces the early "windshield adjuster" holder used in the early 70's although the fastener holes in the boat must be filled and re-drilled. In that early configuration, the adjusters were intended to both hold the hatch open and hold it closed. In reality, they never did hold the hatch closed properly. They could not pull the hatch against its gasket with enough pressure to create a seal. I know more than once I slept on V-berth cushions that were damp from a leaking hatch.

To retrofit the early hatch, use one of these adjusters plus two hatch dogs installed on the leading edge of the hatch (see the photo under "May we suggest" below). The adjuster holds the hatch open. The dogs hold the hatch closed. They are tightened down until they squeeze the gasket and create a superior seal.

• Length (minimum): 10-1/4"
• Length (maximum): 19-1/4"