Product Information Material: Aluminum Component Material: White silicone flapper Select a Product Part NumberIncludesOutletLength 3090MBSAnti-tamper security4" Cam & Groove Adapter12-1/2" 3090MA3" Cam & Groove Adapter12-1/2" 3090MB4" Cam & Groove Adapter12-1/2" 3090MSAnti-tamper securitynot included9-5/8" 3090Mnot included9-5/8"