Model	Year	Manufacturer Weight	Real Weight ?	+/-	User Rating ?
Flag This Model Powertap SL+ Filter Add Review	-	416g	-	-	-
Flag This Model Powertap SL+ Black Campagnolo Filter Add Review	-	412g	-	-	-
Flag This Model Powertap SL+ Black Shimano / SRAM Filter Add Review	-	412g	-	-	-

Quarq

Model	Year	Manufacturer Weight	Real Weight ?	+/-	User Rating ?
Flag This Model SRAM Red 172.5mm 39/53 Filter Add Review	2012 Filter	778g	-	-	-
Flag This Model SRAM Red 172.5mm 39/53 w/BB Filter Add Review	-	884g	-	-	-

SRM

Model	Year	Manufacturer Weight	Real Weight ?	+/-	User Rating ?
Flag This Model SRAM Red 172.5mm 39/53 w/BB Filter Add Review	-	922g	-	-	-