Spa filter cleaning adapter

Adapter for spa filter with 49 mm coarse thread for use in the Estelle spa filter cleaning system.Print settings:5 walls15 % infillNo support needed but the underside of the central hole can be a bit messy but will not affect the function.PETG is recommendedYou will need two M12 nuts (17,8 mm face-to-face) to press in on either side. If the threads of the nuts does not align properly, simply remove one nut and turn it 1/6 turn and try again. No glue needed.