Attwood Catalog 2025

WATER SYSTEMS 31

attwoodmarine.com

Scupper Valve Provides a water exit for boats with self-bailing cockpits. Acetal construction.

Accommodates 3875B thru-transom thru-hull connector (screw holes must be drilled for installation.) Diameter: 2-7/8". Use as a replacement valve for 3881 Thru-Transom Scupper. Caution: Plastic Thru-Hull Connectors are designed for installation above the water line only. OEM Part # Part # 3876-1 3876-3

3876

Thru-Transom with Scupper • The rubber flapper opens to drain water out and closes to prevent backwash.

• Acetal construction. • For 1-1/2" I.D. hose. • Installation Hole Size: 2" • Service Part Kit: Includes outer ring, rubber flapper, four SS screws Caution: Plastic Thru-Hull Connectors are designed for installation above the water line only.

3881

Max Hull Thickness OEM Part #

Description

Dimensions

Part #

3881-1

Thru-transom with scupper 6-1/4" L x 2-7/8" dia. 3-1/8"

— —

3881Kit-1

Service Part Kit

Thru-Hull with Strainer Thru-hull connector with strainer prevents clogging of the aerator pump. Strainer attaches to threads that extend beyond external retaining nut. Acetal construction. Caution: Do not use strainer as a thru-hull connector nut replacement.

Max Hull Thickness

Installation Hole Size

Hose Size 3/4" I.D.

OEM Part # Part #

1-1/16" to 1-1/8" 3886-1

3886-3

1-7/16"

3886

Drains, Drain Plugs & Tubes

Mesh Strainer/Drain Filter Durable strainers to prevent debris from clogging baitwell drains and aerator pumps. Two types of construction: formed stainless steel wire mesh molded into black PVC plastic base or acetal plastic. Caution: Aerator pump must be secured with aerator attachment nut prior to installing strainer. Type Thread Application OEM Part # Part # Stainless Steel mesh 7/8"- 9 UNC2-B Fits 3877-1 thru-hull 11524-1 11524-3 3/4"-14 NPSM Fits 3/4" aerator inlet and 3886-1 thru-hull 4232-1 4232-7 Molded plastic 3/4"-14 NPSM Fits aerator inlet and 3886-1 thru-hull 3885-1 3885-3

11524

3885

CA WARNING: Handling recreational marine vessel parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vessel outdoors or in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/marine-vessel-parts.

Powered by