Zoeller 30-0181
Zoeller 30-0181
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Zoeller 30-0181 - 1-1/2" or 1-1/4" Slip-On Full Flow PVC Check Valve



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Zoeller 30-0181 - 1-1/2
Zoeller 30-0181 - 1-1/2" or 1-1/4" Slip-On Full Flow PVC Check Valve
Model: 30-0181
Product Q&A
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Recommended Accessories

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Expert Recommended Accessories Selected by Jim, our Expert
Required Accessories 9
These accessories are required to properly setup/install this product.
Optional Accessories 10


  • Zoeller "Full-Flow" PVC Unicheck Valve
  • The classic, reliable check valve seen in most basements
  • Ultrasonically Welded PVC Plastic Check Body
  • Rated for use is low presssure pipe (Sump) applications
  • Long Life Internal Rubber Flapper
  • Bends over a radius, no sharp 90° edges
  • Designed to reduce water hammer
  • Fits 1-1/2" OR 1-1/4" Discharge Pipe
  • Universal design, compatible with exisiting plumbing
  • Slip x Slip For 4.3 PSI @ 10' Head
  • Avoid more than 10' static head above check valve
  • Versatile Design
  • Can be installed in a vertical or horizontal position
  • Stainless Steel Clamps & Zinc Screws
  • Keeps the valve in place and reduces chance of corrosion
  • 1-Year Warranty
California residents see
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
For more information go to: www.p65Warnings.ca.gov


specs product image PID-5044
General Information
Product Category
Water Pump Accessories
Discharge Port Size
1-1/4 Inch and 1-1/2 Inch
Product Category
Water Pump Accessories
1.5 Pounds
Consumer Warranty
1 Year
Product Length
9" Inches
Product Width
3-3/8" Inches
Product Height
3-1/2" Inches


Zoeller 30-0181 Reviews & Ratings

Product Q&A

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Product Questions Answered by Jim, the Sump Pump Expert
Can a check valve be mounted horizontally?
Joe W. 
from Michigan 
April 09, 2020
How often do you recommend changing check valves on this model?
Gene K. 
from Illinois 
November 06, 2017
How long does a check valve generally last?
from Illinois 
September 25, 2015
Reading through one of the previous Q&As, you wrote that the check valve is generally installed about 1/2 - 2/3 up the vertical section of the discharge line (assuming 5'-10' vertical section). Why so high? I've seen a few installations where the check valve is right near the base of the line. Don't know which way is better.
from Kentucky 
March 17, 2015
What are the dimensions of this check valve, both with and without the rubber connection parts installed? The current specifications read only "L x 1-1/2"W x H"
from California 
November 18, 2014
My Zoller pump has a threaded female connector on the body. What am I expected to put between the pump body and the bottom clamp of this check valve?
from California 
September 17, 2014
what does the check valve do for a sump pump and do I need one if Im buying a sump pump?
from California 
December 20, 2012
is the zoeller 1.5 slip on check valve a full 1.5 inch or 1.25 and 1.5 inch
Anthony L 
from New York 
December 31, 2011
Where on the line is the best location for the check valve, close to the pump is better?
from Iowa 
February 20, 2011
How important is having a check valve and how often should they be replaced? We bought a house in 04 and we have had the same check valve since we moved in. Don't know how old it is.
Jon Nickol 
from Ohio 
January 06, 2011

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Zoeller 30-0181 - 1-1/2" or 1-1/4" Slip-On Full Flow PVC Check Valve
Zoeller 30-0181
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