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Peterson Grab

Since 1930, the Petersen grab has been used in fresh water for collecting macroscopic fauna in sand, gravel, marl, or clay and is ideal for comparing data collected by a previous Petersen grab. It is not intended for salt water sampling and must be painted for protection if so used.
Since 1930 the Petersen grab has been used in fresh water for collecting macroscopic fauna in sand, gravel, marl, clay or clay combinations
Wildco Petersen Grab

• Classic fresh water sampler in hard bottoms
• Zinc plated steel to prevent corrosion
• Large volume and sampling area
• Tapered scoop edges
• Safety pin lock
• Clamshell pivot

This is a deliberately heavy device for biting deep into hard bottoms and can hold up to 8 removable weights. Vent holes permit water to flow through while the grab is lowered, minimising diagonal movement and reducing the frontal shock wave. Jaws close clamshell- fashion. A safety-pin latch prevents the scoops from closing to help prevent injury. The bayonet-style trip mechanism is designed to release only when the sampler is on the bottom and the cable is slack. Operation requires winch and crane due to the working weight.

Ship wt: 143 lbs.

Materials: Zinc-plated heavy steel
Weight and volume: 34 kg (75 lbs) - 9890 mL volume
With extra weights: 42 kg (93 lbs), steel
Sample area: 305 x 305 mm (12 x 12”)

The Petersen must be used in 7m (22’) or larger boats with 81-A10 crane at a minimum and only in low waves.

Ordering Information:

1750-G30 Petersen Grab with Crate Includes: Shipping crate; four (4) steel weights

Accessories and replacement parts:
188-E50 Wash frame for rinsing contents
81-A10 Boat crane, oversize
61-B14 Cable, stainless steel, 100’
61-B52 Cable, stainless steel, 100 m
1751-G32 Weights, pack two (2), extra

If you cannot find the part number in the documentation please provide detail. Specific to this item, it could include part number or application detail, (ex. 20 meters of cable, or 20 litres of volume)


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1800 622 343
New Zealand
0800 623 336