Attwood Catalog 2025

WATER SYSTEMS 29

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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"

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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

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