... Rubber or PVC flapper available 3) Suitable for one or two-pieces toilets Long life span rubber flush flapper* Different designs* Suitable ... ---WRAS,UPC,CUPC,CE.* 200,000 times life test---Stirct QA & QC.* Customized color,package,design.* Novelty and practical mould ... service.* OEM service supported.* Catalogue and free sample for design and quality check. Long life span rubber flush flapper