Bismarck Canvas Inc 16000 Andre Loop , Menoken , North Dakota 58558 USA About Solutions products Publications videos Companies Bismarck Canvas Inc Products Pro-Lok - Quick Release Assembly Pro-Lok - Quick Release Assembly From EXT® Electric Tarp Conversion - Grain Trailers 0 Share This aluminum tarp stop comes standard in every Pro-Lok® Kit but its also universal for any roll tarp system! Includes mounting hardware. Most popular related searches grain trailer Customer reviews No reviews were found for Pro-Lok - Quick Release Assembly. Be the first to review! Add your review Publish your review Great! review successfully added!