Home - -> Trailers - -> Lightweight bottom dumps   > Adjustable Slide locks > K-bracing > 70, 000 psi structural tubing > Twin 8’’ bore air cylinders   Download our brochure (394kb) Operator Manual        BENEFIT:   Allows for 6 preset openings from 8’’ to 30’’.     home | trailers | where to buy | parts and service | financing | discover manac press | contacts | careers | site map | search | french Copyright © Manac inc. 02/2012. All right reserved.