*Volume Discounts Available* US Patent Number: 8,113,220 B2: The Original Concrete Washout Bag, and the Concrete Pump Washout Bag Preferred by Professionals. EnviroSac Pump Bags utilize a more effective and adaptable design that helps simplify the concrete washout system.
- EnviroSac Waterproof Pump Bags utilize a more effective and adaptable design that helps simplify the concrete washout system
- These Pump Bags fit under all types hoppers and feature a rugged design, which makes the bag the most durable and reliable bag on the market.
- The bag has a waterproof liner and holds 1.3 or .8 cubic yards.
- Straps allow for easy transport even before the concrete has fully set up.
- This bag is light and easy to store ensuring operators always have a secure place to washout.