handle half moon shape

REFERENCES PWW50P3, 6CH-940, FC-0359, 60401, WY45

REFERENCES 2-50B, PWW50P4,WY40

REFERENCES PWW35L, 4CG-935, MA36

SPAS3-35SAETHIN FILTERS

SPAS3-50 FILTER REFERENTIES PWW50L, 4CH-949, FC-0172, SC757, O250

SPAS4-25 FILTER REFERENTIES PWL25P4, SC809, WE25

SPAS43 FILTERS REFERENCES PSN25P4

SPAS14 FILTERS REFERENCES PTL18P4,4CH-21,FC-0121,SC716, CH19

REFERENCES PTL47W-P4,6CH-47,FC-0315,SC709/ LA50

SPAS20 FILTERS REFERENCES PTL20W-SV-P4, 6CH-25, FC-0305

SPAS78 FILTER COMPATIBLE WITH PPM50SC-F2M, 5CH-502, FC- 0195, SC719,Marquispas

SPAS FILTERS O250M SPAS3-50 FILTER REFERENCES PWW50L, 4CH-949, FC-0172, SC757.

SPAS FILTERS O250 SPAS3-50 FILTER REFERENCES PWW50L, 4CH-949, FC-0172, SC757.