Weathermatic - Lightning Arrestor - SLGDT
Weathermatic - Lightning Arrestor - SLGDT is backordered and will ship as soon as it is back in stock.
Why so “cheap” at CheapSprinklers? Low prices by design — same parts, no compromise
Our prices are lower because of how we run our business — not because the product is different — and we pass those efficiencies directly on to you.
You’re receiving the same brand-new, factory-sealed item sold by big-box, supply-house, or bloated online-warehouse sellers — delivered direct to you, for less.
- Bulk Purchasing: We buy in high volume to lower per-unit cost
- Low Overhead: No physical storefronts or unnecessary middlemen
- Price-First Model: Our business is built around keeping everyday prices as low as possible — so you can put the savings toward other projects or your business.
- Fast & Efficient Fulfillment: Streamlined US warehouse operations keep costs down and orders moving fast.
The Result: Genuine products with full manufacturer warranty — delivered fast, without paying inflated big-box, supply-house, or bloated online-warehouse markups for the same parts.
CheapSprinklers Product Guarantee How we guarantee authenticity and warranty coverage
All products sold by CheapSprinklers are brand new and factory sealed. This Weathermatic Decoder (SLGDT) is sourced directly from Weathermatic and ships from us in new-in-box retail packaging.
We’ve been sourcing and supporting irrigation products for professionals and DIYers through both brick-and-mortar and online channels since 1981.
If there’s ever an issue, CheapSprinklers stands behind what we sell and will help coordinate any warranty claim or replacement.
- Genuine New Weathermatic Decoder: no knockoffs, no refurbished, no old stock
- Factory Sealed: shipped in original new-in-box retail packaging
- Current Production Inventory: no discontinued or clearance stock
- Complete Weathermatic Warranty: full manufacturer coverage begins when your order is delivered
The Result: Peace of mind. You’re installing top-quality equipment — and if there’s ever an issue with this Decoder, you’re fully supported by CheapSprinklers and Weathermatic.
A powerful inexpensive way to protect your SmartWire™ system components from lightning strikes. SmartWire™ Lightning Arrestors attach directly to the SmartWire™ 2-wire system and help dissipate static electricity generated by a nearby lightning strike. While all SmartWire™ components have optical isolators and other lightning arresting features, the Lightning Arrestor provides an important extra measure of protection.

Features
- Protects SmartWire™ from excessive static charges created by a lightning strike.
- Connects directly to the SmartWire™ 2-wire system for ease
of installation - Sealed and impervious to moisture, salts, fertilizers and mild
chemicals - Shock resistant
- Freeze/heat resistant (-20 to 60 C)
- No electrical contact with the soil
- Each Lightning Arrestor protects a 300 foot radius
Installation Requirements:
- Installs directly on the SmartWire™ red and black wires
- Attaches to ground rod* via green wire
- Suggested that a Lightning Arrestor be placed every 600 feet along the SmartWire™ 2-Wire path
- Can be buried directly in the soil
- One Lightning Arrestor should be within 25 ft of the SmartLine® or ProLine™ controller
- A single stub line must not exceed 50 feet without a Lightning Arrestor
- Connect green wire to an 8’ copper clad UL approved ground rod or other approved grounding method to obtain 12 ohms or less resistance.

- Each Lightning Arrestor protects a 300 foot radius.
- There shall be a Lightning Arrestor within 25’ of the SmartLine® controller. A ground rod or adequate electrical safety ground may be used.
- There shall be a Lightning Arrestor at the end of the SmartWire™ 2-Wire path that is the maximum distance from the SmartLine® or ProLine™ controller. If the SmartWire™ path is looped, install at the furthest point from the controller.
- A stub length shall not exceed 50’ without a lightning arrestor (must be within 300’ of an existing Lightning Arrestor).
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