The Gilmour Circular Impact Sprinkler with On/Off Spike is a dependable, no-fuss hose-end sprinkler designed for homeowners who want large-area lawn coverage without the complexity of a buried irrigation system. Simply push the metal spike into the ground, connect your garden hose, and you're ready to water up to 5,800 sq. ft. with a throw distance of up to 43 feet. The adjustable collar lets you dial in anything from a narrow partial-circle arc to a full 360° sweep, so you can match coverage precisely to your yard's shape — corners, edges, open lawns, and everything in between.
What makes this sprinkler stand out from basic hose-end models is its built-in on/off switch on the spike base. Instead of running back and forth to the faucet every time you want to start, stop, or reposition the sprinkler, you simply flip the switch at ground level. It also doubles as a flow-control valve, letting you fine-tune water pressure at the sprinkler itself. The diffuser pin gives you a second layer of customization: wind it in for a powerful long-range jet, or ease it out to break the stream into a gentle, rain-like mist — ideal for newly seeded lawns, seedlings, or delicate plantings. The entire unit is built from sturdy metal construction for long-term durability, and Gilmour backs it with their lifetime warranty.
This sprinkler connects directly to any standard 3/4" garden hose, making it compatible with the vast majority of residential outdoor faucets and hoses. Looking to automate your watering schedule? Pair this sprinkler with a hose-end timer from DripWorks to set it and forget it — no controller wiring required. If you need a larger-coverage hose-end option, check out the Gilmour Oscillating Sprinkler for rectangular lawn patterns. For built-in in-ground coverage, browse DripWorks' full selection of impact sprinklers.
| Specification | Details |
|---|---|
| Spray Distance | Up to 43 ft. |
| Coverage Area | Up to 5,800 sq. ft. (full circle) |
| Spray Pattern | Circular (partial- to full-circle, adjustable) |
| Arc Adjustment | Adjustable collar for partial- to full-circle coverage |
| Diffuser Pin | Yes — adjusts spray from powerful jet to gentle rain |
| On/Off Switch | Yes — located on spike base; also functions as flow control |
| Connection | Standard 3/4" garden hose thread (GHT) |
| Base Type | Ground spike |
| Construction | Sturdy metal |
| Warranty | Lifetime |
| Brand | Gilmour |
What does the on/off switch do, and where is it located?
The on/off switch is built into the spike base — at ground level — and lets you start, stop, or adjust water flow right at the sprinkler without returning to the faucet. This is especially useful when repositioning the sprinkler mid-session or fine-tuning flow while the system is running. It's one of the key advantages of this model over basic impact sprinklers that have no in-line flow control.
How does the diffuser pin work?
The diffuser pin is a small adjustable pin located at the nozzle. When screwed inward (retracted), the stream remains concentrated and powerful — maximizing throw distance for large open lawns. When screwed outward, it breaks up the stream into a softer, rain-like spray that's ideal for delicate plants, newly seeded areas, or situations where a hard jet would cause erosion or runoff.
How do I set a partial-circle pattern?
Rotate the adjustable collar on the sprinkler head to your desired arc. The collar restricts the rotational sweep of the impact arm, allowing you to water a wedge-shaped zone rather than a full circle. This is useful for corners, edges next to driveways or fences, and any area where you don't need 360° coverage.
What hose size does this sprinkler require?
This sprinkler connects to any standard 3/4" garden hose thread (GHT) — the same thread found on the vast majority of US residential garden hoses and outdoor faucets. No adapters are required for standard garden hose setups.
Can I automate this sprinkler with a timer?
Yes. Simply attach a hose-end timer between your outdoor faucet and the hose leading to this sprinkler. Battery-operated timers require no wiring and turn the water on and off automatically on your programmed schedule. DripWorks carries a wide range of hose-end timers compatible with this setup.
Can I connect multiple sprinklers together?
Yes, if your water pressure and flow rate support it. You can daisy-chain multiple hose-end sprinklers or use a hose Y-splitter to run two circuits from one faucet. Keep in mind that adding more sprinklers to a single line will reduce the pressure and throw distance at each head. For large-area coverage with multiple zones, a dedicated drip or sprinkler system with zone valves will give you more consistent results.
Is this sprinkler suitable for newly seeded or delicate lawns?
Yes — with the right adjustment. Use the diffuser pin to soften the spray into a gentle mist-like pattern, which reduces the force of water impact on seeds or young seedlings. For very delicate applications, start with lower faucet pressure and dial in from there.
What is Gilmour's warranty on this product?
Gilmour backs this sprinkler with a lifetime warranty against defects in material and workmanship.
Before you water, verify the following:
Pair your Gilmour Impact Sprinkler with these DripWorks essentials for a smarter, more automated outdoor watering system:
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