Are they re-usable? Can I re-use it to connect a different set of wires later? Thanks.

As mentioned, some of the Dielectric grease is displace by the wires and pressed into the wires. If you are adding one more wire to the bunch, I see no reason why you can't reuse in this case as you are adding mass to the cavity. If you want to be anal, you could add more Dielectric grease to the nut and wires (after twisting them) prior to reuse of the wire nut; cost is about $0.50 per nut if you are considering material cost. But in a pinch, if you run out of nuts, you can add Dielectric grease to finish the job.

Does the silicone inside harden over time to help keep the wires inside tight and contained? Thanks!

No the silicone in the wire caps are like Vaseline never gets solid. I have a jar of Vaseline that is around 50 or so years old and it's just like they we bought it.

How many 12 or 16 gauge wires can these hold in one cap? Thanks

I don't know any thing about 12 gauge wire, but for 16 gauge wire it can hold at least 2 .

I need to join a bundle of three #14 stranded copper wire. is the wpconn10 the right choice?

The package lists 2 #14 along with other combinations. 3 #14 is not listed.

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Rain Bird WPCONN10 Waterproof Grease Cap Wire Connectors, 10-Pack, Black/Green

Rain Bird WPCONN10 Waterproof Grease Cap Wire Connectors, 10-Pack, Black/Green

Product ID: 315108451

Details

Colour
Black/Green
Connector type
Snap Connector
Contact material
Silicone
Insulation material
Nylon
Terminal
Twist Terminal

⚡600V surge protection

💧Waterproof silicone gel seal

🔧One-step twist cap install

€ 31.67

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Description

⚡ Seal it. Twist it. Forget it. The ultimate waterproof wire connector for pros.

MESS FREE WATERPROOF SEAL - Silicone gel-filled connectors keep wires dry and secure—no grease tube needed.
BULK PACK FOR PRO EFFICIENCY - 10-pack bundle designed for multiple projects or professional use—stay stocked and ready.
BUILT TO WITHSTAND POWER SURGES - Rated for up to 600 volts, ensuring reliable performance under electrical stress.
EFFORTLESS ONE STEP INSTALLATION - Simply insert wires and twist the cap—no pre-twisting or extra tools required.
UV CHEMICAL RESISTANT DURABILITY - Engineered with UV-resistant materials to last outdoors without degradation.

Rain Bird WPCONN10 Waterproof Grease Cap Wire Connectors deliver a hassle-free, one-step installation with silicone gel sealing for superior waterproofing. Rated for 600 volts and UV resistant, these connectors ensure durable, mess-free, and secure electrical connections in wet or outdoor environments. Available in a convenient 10-pack, they’re perfect for professional-grade irrigation and electrical projects.

Specifications

ASIN	B0046735LO
Brand Name	Rain Bird
Color	Black/Green
Connector Gender	Female
Connector Type	Snap Connector
Contact Material	Silicone
Customer Reviews	4.6 4.6 out of 5 stars (1,060)
Global Trade Identification Number	00077985013370
Insulation Material Type	Nylon
Item Dimensions L x W x H	34.9L x 34.9W x 25.4H centimeters
Item Type Name	Rain Bird WPCONN10 Waterproof Grease Cap Wire Connectors, 10-Pack
Item Weight	0.01 Ounces
Manufacturer	Rain Bird
Material Type	Plastic Metal
Maximum Voltage	600 Volts
Model	N90300
Number of Items	1
Part Number	WPCONN10
Specification Met	Ul 486a
Stud Size	1/2, 3/8
Temperature Rating	40-221 C
Terminal	Twist Terminal
UPC	077985013370
Unit Count	10 Count

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€ 31.67

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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Received my product in pristine condition. Great service overall.

1 month ago

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