of cut-out is 20-3/8"

254-366 strainer recommended for these pumps

4mm (9-27/64")

Ft up to the smallest of only1

Flood Light 4", 1,500 Fixture Lumens, 5,500K, Windlass Spare Parts of cut-out is 20-3/8"Lumishore#39; s new Flood Light 4quot; (10cm) generates a powerful 1,500 fixture lumens of crisp, white light to illuminate the hardest to see places onboard. Wide reaching oval beams of 70deg; 100deg; will provide bright light wherever you need it. Perfect for deck, cockpit lighting, or for general security purposes, these low profile articulating flood lights are ideal for exterior mounting on cabin tops, T tops, arches, transoms and radar