# Non-Return Check Valve

> Non-return check valve for groundwater sampling tubing. Prevents backflow during low-flow purging and sampling. Fits standard tubing sizes. Order from ERE Inc.

- **URL:** https://ereinc.com/products/non-return-check-valve
- **Type:** Water Sampling Accessory
- **Brand:** Proactive Environmental Products LLC
- **Pricing:** request a quote at https://ereinc.com/products/non-return-check-valve
- **Tags:** brand:proactive-environmental-products-llc, dept:instruments-sales, revamp-2026-06, Water Sampling Accessories, Water Sampling Pumps

## Description

Optional accessories for Proactive Standard & High Performance Pumps.

## Images
- https://cdn.shopify.com/s/files/1/0561/7434/6433/files/9efae8_7834e3392dfe477da66536e9cdbea2ec_mv2.png?v=1781401263
- https://cdn.shopify.com/s/files/1/0561/7434/6433/products/nonreturncheckvalve.jpg?v=1651165989