MAXADAPTOR® Insert Bushings


Designed to facilitate pipe transition between pipes with differenct nominal sizes. For non-pressure, gravity flow applications only. Recommended for underground installations. Available for transition/reducer of 4" PVC pipe to 3" PVC pipe, 4" Clay pipe to 4" PVC pipe and 6" Clay pipe to 4" Cast Iron/PVC pipe.

Note: Coupling sold separately.


  • Bushing: EPDM Rubber
ASTM D2000 View

Easy to install and reuse.


EPDM synthetic rubber sealing gasket resists ultraviolet rays, ozone, fungus growth, natural soil erosive properties, and normal sewer gases.


EPDM rubber permits a substantial degree of distortion without change in basic physical resistance. More pliable and easier to install in cold weather applications than elastomeric PVC bushing.

  1. EASY

Complies with physical and mechanical property requirements per ASTM D2000 3BA715A14B13C12F17.

Hardness Durometer, ASTM D2240, Type A, 70±5 Shore A Hardness Points.

Tensile Strength, ASTM D412, Die C, 1500 psi., minimum.

Ultimate Elongation, ASTM D412, Die C, 250%, minimum.

Air Age Testing, ASTM D573, 70 hrs. at 100°C (212°F).

Hardness Durometer Change, +10, maximum.

Tensile Strength Change, -25%, maximum.

Ultimate Elongation Change, -25%, mmaximum.

Compression Set Testing, ASTM D395, Method B, 22 hrs. at 70°C (158°F), 25% maximum.

Ozone Resistance Testing, ASTM D1171, Method A, Exposure Rating, 72 hrs. at 40°C (104°F), 50 pphm, No Cracks Low Temperature Resistance Testing, ASTM D2137, Method C. Non Brittle after 3 Minutes at -40°C (104°F).

MAXADAPTOR® Insert Bushings

A-PIPE OD B-PIPE OD C-DEPTH OF SOCKET MAX JOINT DEFLECTION ANGLE WEIGHT MAX Coupling OD Range min MAX Coupling OD Range max Larger Pipe ID min Larger Pipe ID max Smaller Pipe ID min Smaller Pipe ID max Sewer Main Wall Thickness Lateral Pipe min Lateral Pipe max Core Drilling min Sewer Main Core Break min Sewer Main Core Break max Foam Qty Required DIM. A DIM B DIM C DIM D DIM E DIM F Weight Pressure Resistance GG Part Part Pipe O.D. 2 Bushings (TWP) Pipe O.D. 1 Bushing (SCH 40) Pipe O.D. No Bushings (DI) Inside Core Drilling I.D. Installation Depth (Min)
45R35 Insert Bushing2904332
55R45 Insert Bushing 2905354
65R45 Insert Bushing2906353

MAXADAPTOR® Insert Bushings

GG PartPartDescriptionCase Qty.Case Wt.
45R35 Insert Bushing29043324" PVC to 3" PVC Reducer1 lbs
55R45 Insert Bushing 29053544" CL to 4" PVC Reducer 1 lbs
65R45 Insert Bushing29063536" CL to 4" CI/PL Reducer1 lbs