Cén méid a thagann sábha poill isteach?

Is é an méid: 3/4" (19mm), 7/8" (22mm), 1-1 / 8" (29mm), 1-1 / 4" (32mm), 1-1 / 2" (38mm), 1-3 / 4" (44mm), 2" (51mm), 2-1 / 2" (64mm), 3" (76mm), 3-1 / 2" (89mm), 4" (102mm), 5" (127mm), 6" (152mm), Beidh tomhais roinnt samhlacha de pholl sáibh priontáilte ar bhalla an lann ghearrtha.