Hydro Flow Poly-Tube Push-In Fittings Hydro Flow Sale! from $0.20 CAD Size 3/16 in Qty. Add to Cart Inventory on handShips within 24hours Mon-Fri This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Hydro Flow® Poly Tube Push-In Straight Fitting for both indoor and outdoor drip irrigation. SKU: 210000004302 Tweet