Carottier K et B, type à colonnes

This design incorporates improvements by Dr. R. O. Brinkhurst, Institute of Ocean Sciences, specifically for obtaining quantitative samples of fast-moving Tubificidae.

Because the valve is locked open during descent, there is minimal frontal wave and minimal warning to fauna at the water/bottom interface. It is messenger-operated and is under your full control: you can keep the K-B® open until you are sure you have a sample. The heavy K-B® affords better penetration. Units are also available without carry cases.

Features

• For deep water over 100 meters
• For fauna at water/bottom interfaces
• Can be free-dropped up to 10 m (33’)
• In medium or heavy-duty versions
• Unrestricted flow, little bottom disturbance
• Messenger closing for more control
• Parts interchangeable with Wildco® corers

Specification

Medium units weigh 7 kg (15 lb.) and include # 2400-B20 :

• 316 stainless steel head assembly
• 20” long 316 SS or clear PVC core tube
• 45-B10 messenger, 61-B14 (100’) cable, carry case
• Liner-type kits include: 2 nosepieces (2449-A11); 2 clear CAB liners with caps (2447-C21); 3 eggshell catchers (2449-B13)

Heavy units weigh 16 kg (36 lb.) and include # 2401-B20 :

• 316 stainless steel head assembly
• 20” long 316 SS or clear PVC core tube
• 45-B10 messenger, 61-B14 (100’) cable, carry case
• Liner-type kits include: 2 nosepieces (2449-A11); 2 clear CAB liners with caps (2447-C21); 3 eggshell catchers (2449-B13)