Allen Rigid Hatch Cover with Integral Seal - S-M-L Select (See Table Below):AL-1937-WT 148MM RIGID HATCH COVER -WHITE - EACH approved Diameter Description Ring ID:

approved Diameter Description Ring ID: 13mm

tile and textured surfaces

Galvanised double headed lock keys

Working Pressure: 10 Bar (145 PSI)

80 stroke/min 72 Lpm

Allen Rigid Hatch Cover with Integral Seal - S-M-L Select (See Table Below):AL-1937-WT 148MM RIGID HATCH COVER -WHITE - EACH approved Diameter Description Ring ID:This modern Rigid hatch cover features an integrated internal seal to ensure a fully watertight seal between the screw lid and the deck ring. It's overall rigidity presents flexing which can often cause leaks and jamming of the threads. Spec Sheet Part Description Size Colour Fixing Hole mm Cut out mm Opening mm Weight g RRP Inc VAT Unit AL 1737 BK Hatch cover rigid with integral seal Small Black 4 108 100 84 13. 68 EACH AL 1737 GY Hatch cover rigid