SPEK suggests : SPEK pneumatic flush mechanism for water supply from the bottom.
The mechanism includes :
Body of pneumatic flush mechanism full set SPEK 2'' with adjustable overflow.
Silicone PVC pipe 33cm Button No 7E for diameter 39 mm (code 10790)
Conical rubber 2''.
Plastic ring 2''.
Plastic nut 2'' (ABS).
Set of antimagnetic stainless steel screws 8cm (code 41964) Noiseless and adjustable floating valve 1/2” for bottom inlet 5-23cm (code 68220)
Small plastic stick 5cm.
Round floating bladder Φ90 (code 60001)
Emmanuela rubber ring. (code 26001)
Inside SPEK plastic bag.