Head to suit wet end of almost all types of 1 3/4" Piston pumps
It is always better to let me know what pump you have so I can tailor the head the best, Some of the oldest varieties have heavier heads and the 1 1/2" has a different size head
Check out all my videos on overhauling these pumps by checking out my Youtube channel. Channel name is SHEDASAURUS and most videos start with the words -Piston Pump 1 1/2"
Can post Australia wide for free