ท่ออ่อนลูกฟูก 1/2 SECRETS

Is this hose ribbed on the inside or can it be smooth? Q Is that this hose ribbed on the inside or can it be clean? ANo need to invest in high priced stainless-steel couplers again and again again. ReSeal® sanitary couplers give lasting discounts. Whenever your hose wants replacing, just return the stainless fittings to us for reuse on a brand new