Mini Polyethylene Groundwater Bailer, 0.75″ × 36″, Single Check — Weighted

Built for tight access wells, this 0.75″ O.D., 36″ mini bailer features a weighted body for fast descent and a single bottom check valve to retain your sample during retrieval. Mini bailers are engineered for wells that accept ½″ or ¾″ diameters and are supplied in easy-to-deploy three-foot lengths for consistent, repeatable field work. 

Key features

• Weighted design for quick sink rate and stable vertical alignment.

• Single bottom check valve (point-to-container retention) for dependable sample capture. 

• Virgin polyethylene (HDPE) construction; rugged and field-proven. 

• PFAS-accepted equipment category when polyethylene bailers are required. 

• Manufactured for straight, true descent in small-diameter wells. 

What’s included

• 24 × Polyethylene mini bailers, 0.75″ O.D. × 36″, weighted, single check valve (one case). 

Technical specs

• Outside diameter: 0.75″ (19 mm) 

• Length: 36″ (914 mm) 

• Material: Polyethylene (HDPE) 

• Valve: Single bottom check

• Weighting: Integrated weight (factory-installed)

• Approx. sample volume (per bailer): 0.192 L at 0.75″ × 36″. 

• Packaging: Case of 24 bailers

Field use (quick start)

1. Tie your line at the top opening.

2. Lower to target depth; allow the bailer to fill.

3. Retrieve and decant per SOP—bottom check valve retains the column during haul-out.