The Gar-Bro Round Gate or ‘R’ Series Concrete Bucket is 30% to 50% lighter than most standard steel buckets of the same capacity. The Double Clamshell 16-inch diameter venturi gate throat is non-jamming, grout tight, and self-closing. A variety of attachments are available for all ‘R’ series buckets, including rubber accordion hoppers, side chutes, air operated gate systems, and extension collars. See the GAR-BRO Round Concrete Buckets brochure or visit their website at WWW.GARBRO.COM for more details.