pictures form part of description.
PNEUMATIC Air plunger BUTTON to operate Waste disposal/ Insinkerators,
Portapac Demand spa units,
other air switches, spa bath operators
EASY FIT from top
These are low price, low profile, CHROME, and just push in
a 32 mm (1.266")hole (or larger)in the spa combing
(use nut if rear access available)
or deck, fence, anywhere you can make a hole and route air tube
Chrome Top is 45.5mm dia, with some silicone it will cover larger hole
Air switches, double and with time clocks also available
for spas, Insinkerators, any where you don't want your wet hands touching electric switches
or some low cost remote control is desired, up to 3 mtr.
If your hole is too big, cut a plastic or stainless washer and glue,
if too small just file out with a wood rasp/round file
and glue with a little silicone.
Some old buttons had a nut underneath, just cut the top off, ( use wide wood chisel if plastic)
push in the hole, then fish out the air tube with a coat hanger, fit the new button.
If metal button, grind top off with your 4" disc, carefully!
I have done this many times on spa baths and pools,