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Left/Right & Di-electric Fittings

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Left/Right Nipple And Coupling Set
Left Right Nipples
Left Right Coupling
    These have standard right-hand threads on one side & reverse (left-hand) threads on the other. These are generally used for gas piping, when unions are not allowed.
Description Price & Quantity
1/2" x 4" Nipple + L/R Coupling $9.16
3/4" x 4" Nipple + L/R Coupling $10.59
1" x 4" Nipple + L/R Coupling $15.13
1-1/4" x 4" Nipple + L/R Coupling $19.51
1-1/2" x 4" Nipple + L/R Coupling $23.44
2" x 4" Nipple + L/R Coupling $29.21

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Left/Right Fittings
Left Right Nipples Left Right Coupling
L/R Nipples
Size Price & Quantity
1/2" x 4" $5.41
3/4" x 4" $6.59
1" x 4" $9.01
1-1/4" x 4" $11.03
1-1/2" x 4" $14.02
2" x 4" $16.44
L/R Couplings
Size Price & Quantity
1/2" $4.40
3/4" $4.79
1" $7.12
1-1/4" $9.93
1-1/2" $11.36
2" $14.36
Note: You need both a left/right nipple & a left/right coupling to use these

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Di-Electric Unions - Forged Steel
Sweat x Fips
Dielectric isolation union
click here to view parts break down
Fitting Size Price & Quantity
1/2" $3.31
3/4" $3.31
1" $5.13
1-1/4" $9.14
1-1/2" $12.55
2" $17.24

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Need to seal your pipe threads? Click here for PTFE tape and pipe dope.

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To copper unions

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Di-Electric Unions - Galvanized
Fips x Fips
Dielectric isolation union
click here to view parts break down
Fitting Size Price & Quantity
1/2" $6.35
3/4" $6.52
1" $9.71
1-1/4" $19.04
1-1/2" $24.98
2" $28.67

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Need to seal your pipe threads? Click here for PTFE tape and pipe dope.

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Insulated Couplings
Fips x Fips
Insulated Coupling
Fitting Size Price & Quantity
1/2" $10.85
3/4" $11.07
1" $12.75
1-1/4" $15.89
1-1/2" $19.87
2" $21.91

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Need to seal your pipe threads? See below.

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Click here to go to stainless water heater flexes
(they act as dielectric fittings as well)

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Thread sealants (IPS threads)
Product Description Price & Quantity
PTFE thread sealing tape PTFE thread sealing tape 1/2" x 260" roll $0.38
1/2" x 520" roll $0.54
1 oz. pipe dope 1 oz. Great White Basic Pipe Joint Compound
- Small, convenient tube
- Great for most plastics and metals
$2.03
Thread Sealing Compound 4 oz. High Quality TU-555 Pipe Joint Compound
- Available in larger sizes, too
- Great for most plastics and metals
$5.39

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how? "Any left- and right-hand tricks?"
The trick for left- and right-hand fittings and couplings is to get the correct bite the first time. The way to do that is to insert one side of the nipple/coupling and hand-tighten. Count the number of turns to get it to hand-tight. Then take apart and do the same on the other side. If one side took more turns to get it to hand-tighten, then add (or subtract that number) before starting; and turn that amount into the side that took more turns. In other words, the secret is to tighten the same amount after hand-tightening.

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