The MC‑400 Hedrick/Marrs Multi‑Corer is engineered for precise collection of sediment and overlying water samples in lake environments and continental shelf regions. Each core tube is securely sealed using a silicone upper door gasket and a neoprene or carpet-style lower seal, ensuring sample integrity during recovery. The four individual tubes can be quickly detached from the main frame, allowing immediate laboratory processing without exposing the samples to surface conditions. The tubes measure 58 cm in total length and achieve a maximum penetration depth of 34.5 cm.

With an overall height of 197 cm, the corer is optimized for use on smaller research vessels, while its compact 177 cm x 177 cm deck footprint enhances operational efficiency. The frame can also accommodate up to two 4‑liter water bottles that trigger automatically when the legs contact the seabed. Thanks to the reliable sealing system of the Hedrick/Marrs design, researchers can trust that the recovered overlying water represents true in‑situ conditions, free from contamination or mixing during ascent.

Tube size: 10 cm x 58 cm

Height: 197 cm (197 cm fired)

Width: 177 cm

Weight: 137 kilos

Shipping weight: 243 kilos

Deck footprint: 177 cm x 177 cm