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FloPlast Push-Fit Straight Coupler White 40 x 40mm (17406)

Made from polypropylene, this is a quick and easy way to install waste systems incorporating a push-fit ring seal system. An allowance of a 10mm expansion gap on all push-fit joints is required for the expansion of pipes and fittings in each socket of push-fit systems. Requires no solvent welding or tightening. Manufactured to BS EN 1451-1: 2000 / BS 5254.

  • Polypropylene Construction

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Rated 4.9 out of 5 by 8 reviewers.
  • 2016-09-23 T11:30:37.382-05:00
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Rated 5 out of 5 by Easy to use for even a novice Just used this on utility sink to connect an unusual European trap to normal waste pipe. Perfect fit and easy to use. Would recommend. 4 Jan 2016
Rated 4 out of 5 by Check your pipe type carefully Although I am sure that this coupler does the job very well,, as a complete novice I made the naive assumption that all that 40mm waste pipes were the same size! However, I have now discovered that they come in two sizes, one for push fit fittings and one for solvent fittings. The coupler was required to connect to a solvent waste pipe, which has a diameter of more than 40mm, and thus did not fit. However I then purchased a solvent coupler which did the job fine. 3 Aug 2015
Rated 5 out of 5 by Straight Couplers 40mm Added an extension to my drainage pipe under the sink for a washing machine fitted snug as a bug. has not failed P.S remember to cut pipe square and clean of burrs. 18 Jun 2015
Rated 5 out of 5 by Cheap and Effective Can't beat this for price and ease of installation - just remember to check the size of the pipes you're connecting to as not all 1.5" pipes are the same! 21 Apr 2015
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2 Questions  2 Answers

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I'm fitting a new sink and waste (it's Italian). The waste/trap as supplied all fits together nicely but I need to extend the vertical section to meet the level of the outgoing waste through the kitchen wall.
I was going to use one of these couplers with a short length of 40mm pipe (from Flo Plast!). However I measured the OD of the "Italian" pipe and it is 38mm.
Do you think the Flo Plast 40mm couplers will fit tightly enough to make a good seal?

Thank you very much
21 Feb 2016
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St.Albans
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Answer: 
No, the coupling would not be suitable for 38mm pipe.
25 Feb 2016
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ive got a pre existing bit of waste plumbing for a warehouse sink i have to replace, but its 43mm, the only pipe ive got is 40mm - will this coupler allow me to jump down the 3mm needed?
11 Jan 2016
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Answer: 
If the waste pipe has an O.D of 43mm then it will be a solvent weld system and not a push fit system. You would need a 40mm ABS Solvent coupling instead of the push fit coupling.
13 Jan 2016
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Specification
Brand FloPlast
Colour White
Connection Type Push-Fit
Construction Material (Plumbing) Polypropylene
Model No WP08
Pack Size 1
Pieces in Pack/Case 1
Product Diameter 40 mm
Product Type Straight Coupler
Total Product Weight 0.03 kg