Bulkhead ABS Slip x Thread (Slip on the Flange/Head side)

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Quick Overview

Bulkheads are used to attach plumbing to aquariums and sumps to allow water to flow though them. These low profile reef safe bulkheads are made from black ABS plastic. Our supplier manufactures these slightly thicker than competitor aquarium bulkheads making them more reliable.


Bulkheads come in different sizes and either with or without threads for plumbing to connect to. With threaded bulkheads you will need to use a male pipe thread to screw into the bulkhead to make a connection. Slip fittings will require solvent to bond the bulkhead to the plumbing permanently.


For bulkhead dimensions please see full details

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  • Quick Overview

Bulkheads are used to attach plumbing to aquariums and sumps to allow water to flow though them. These low profile reef safe bulkheads are made from black ABS plastic. Our supplier manufactures these slightly thicker than competitor aquarium bulkheads making them more reliable.

Bulkheads come in different sizes and either with or without threads for plumbing to connect to. With threaded bulkheads you will need to use a male pipe thread to screw into the bulkhead to make a connection. Slip fittings will require solvent to bond the bulkhead to the plumbing permanently.

For bulkhead dimensions please see full detailsMore

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Bulkhead ABS Slip x Thread (Slip on the Flange/Head side)

96% Recommend this to a friend (25 of 26)

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12” Bulkhead ABS Slip x Thread
SKU: 202942
$4.99
 
 
34” Bulkhead ABS Slip x Thread
SKU: 202946
$5.99
 
 
1” Bulkhead ABS Slip x Thread
SKU: 202950
$5.99
 
 
1 14” Bulkhead ABS Slip x Thread
SKU: 210031
$6.99
 
 
1 12” Bulkhead ABS Slip x Thread
SKU: 202954
$7.99
 
 
2” Bulkhead ABS Slip x Thread
SKU: 202958
$9.99
 

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Product Questions

When installing bulkheads which side goes in the tank and which goes outside tank for the drain. Also do I use a different bit to drill 3/4" acrylic vs glass.
Question by: Don on Mar 30, 2014 1:11:00 PM
Hi Don,
The flange side (side with the big head on it) part of the bulkhead goes on the inside along with the o-ring. The nut then secures the bulkhead on the outside of the tank. Depending on the material you would use different drill bits. Glass requires a diamond coated drill bit and acrylic a hole saw blade.
Answer by: Bulk Reef Supply on Mar 30, 2014 1:11:00 PM
What's the maximum wall thickness of the 1/2" ABS bulkhead fitting? I have a cooler with a 1" wall thickness. Will I be able to use this? Thanks.
Question by: Scott on Jun 12, 2016 11:42:00 AM
Great question!
The 1/2" bulkhead will work up to 3/4" thickness. Feel free to let us know if you have any further questions.
Answer by: Connor (Admin) on Jun 14, 2016 6:37:00 PM
Hi, i bought two 1" slip x thread and two 3/4" slip x thread bulkheads and can't seem to get a female adapter to screw onto the bulkhead. What can i use?
Question by: Tim on Sep 21, 2013 8:15:00 AM
Hey Tim,
The plumbing threads on the bulkhead are female, so you would need a male threaded pipe fitting to screw into the threaded bulkheads and then it should work a lot better for you!
Answer by: Bulk Reef Supply on Sep 21, 2013 8:15:00 AM
On the slip x thread bulkhead is that threaded on the inside of the tank?
Question by: Roger on Mar 20, 2014 9:47:00 AM
Hi Roger,
It is best to have the flange side on the inside of the tank, so on this particular bulkhead the thread would be on the outside of the tank. For threads on the inside you would want a Thread x Slip.
Answer by: Bulk Reef Supply on Mar 20, 2014 9:47:00 AM

Full Details

When measuring for bulkheads, you will need a hole in your tank that is slightly larger than the "C" measurement for the corresponding bulkhead but no larger than the "A" measurement. 

 

1/2" ABS Bulkhead Slip X Thread Dimensions (see diagram)
A - 44mm/1.72"
B - 43mm/ 1.69"
C - 27mm/1.06" (Installation Hole Size)
Use our 30mm Diamond Coated Glass Drill Bit for DIY installation

 

3/4" ABS Bulkhead Slip X Thread Dimensions (see diagram)
A - 52mm/2.04"
B - 50mm/1.98"
C - 34mm/1.33" (Installation Hole Size)
Use our 35mm Diamond Coated Glass Drill Bit for DIY installation

 

1" ABS Bulkhead Slip X Thread Dimensions (see diagram)
A - 68mm/2.67"
B - 63mm/2.48"
C - 42mm/1.65" (Installation Hole Size)
Use our 45mm Diamond Coated Glass Drill Bit for DIY installation

 

1 1/4" ABS Bulkhead Slip X Thread Dimensions (see diagram)
A - 77mm/3.05"
B - 71mm/2.80"
C - 51mm/2.00" (Installation Hole Size)
Use our 53mm Diamond Coated Glass Drill Bit for DIY installation

 

1 1/2" ABS Bulkhead Slip X Thread Dimensions (see diagram)
A - 86mm/3.38"
B - 73mm/2.87"
C - 59mm/2.32" (Installation Hole Size)
Use our 60mm Diamond Coated Glass Drill Bit for DIY installation

 

2" ABS Bulkhead Slip x Thread Dimensions (see diagram)
A - 98mm/3.85"
B - 73mm/2.87"
C - 72mm/2.83" (Installation Hole Size)
Use our 75mm Diamond Coated Glass Drill Bit for DIY installation

 

Example: If you have a 1.75" diameter hole currently in your tank, then you would want to use the 1" ABS Bulkhead.

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Reviews

Items 1 to 12 of 26 total

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  • Low profile wet side, good seal By don_chuwish on 4/3/2016

    Perfect for a 'ghost' overflow external box. Thread on the outside, slip on the inside allows for change. Good quality.
  • High Quality By B on 1/4/2016

    Purchased several bulkheads from BRS ranging in different sizes and thread/slip. Very pleased. Well built. Never had a leak, but i usually add a small amount of silicone just to be safe. That's my OCD. Tested without silicone and no leaks. I only buy my bulkheads from BRS. If you are looking for a quality bulkhead you will not be disappointed with BRS bulkheads or any of their products. Don't let the price fool you. In this case you get quality at affordable price.
  • Would recommend By Juken on 11/25/2015

    Excellent quality
  • Solid buy for the price By Deneed4spd on 2/3/2015

    Used several over couple years and had no issue with leaks, etc. Good bang for the buck.
  • Great parts! By Jonathan on 1/24/2015

    I bought these for my tank the other day because my old ones finally gave out after 3 years. These are amazing bulkheads and I will never use any other type.
  • threads are a little loose fitting By Ken on 1/22/2015

    I purchased four of the slip thread bulkheads for my 180 and was surprised that the schedule 40 male adapters from Depot did not snug up as tight as they would have in a schedule 40 female adapter. They screwed in straight to the bottom. I wound Teflon tape around them to tighten the threads a bit. I will update on leaks after I pressurize the returns.
  • great product By dpoz on 12/3/2014

    These schedule 80 fitting are great I used them on my 29 gal build and now on my 180 build all the box stores have crap great for the price.
  • Nothing but trouble By vtecintegra on 9/12/2014

    I can't believe I'm the only one having this problem according to other reviews, but 5 out of 11 threaded on the non-flange side have split at the seam and leaked. I consider myself half way adept being in the hobby for 12 years. Tightened by hand, paste instead of tape, and two 1/2" and three 1" all splitting on the seam. You really can't see the crack until pumping water through. BRS promotes these as better and heavier duty to normal ABS bulkheads? I'd hate to see how a lesser quality bulkhead holds up. You can see the molding line down the center and that's where each one has cracked. IMO they are cheap and asking for trouble. The first three were just an annoyance since they are on my ATS box over the sump, so dripping isn't a show stopper. The fourth though was on my ghost type overflow requiring draining down the tank, disconnecting hoses, and pulling the box to get it out. My fought for trying to save a few bucks. Schedule 80 on my other tank has never caused any problems. I do not recommend buying the threaded on the non-flange side. If you are trying to save a few bucks like my mistake, at least go slip and cement your fitting instead using screw in fittings.
  • Used on corner-flo tank By Jschoen on 3/29/2014

    Bought these to replace the stock slip x slip bulkheads that come with the corner-flo system. these arre the lowest cost bulkheads that i could find. the threads fit correctly and i have no leaks.
  • Cheaper than the LFS By John on 3/22/2014

    Exactly what I was looking for and its cheaper than the local store!
  • Cheap By Warren on 4/23/2013

    If you only need a cheap bulkhead, this is it. Works well.
  • 1 1/2 inch Bulkhead = Amazing Quality! By Kyle on 1/30/2013

    For such a cheap cost, i was worried of the overall construction quality of these bulkheads. I am more than absolutely satisfied and will certainly buy more whenever needed from BulkReefSupply.com!

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