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Klein Tools GFCI Outlet Tester

Klein Tools GFCI Outlet Tester

Klein Tools · Model RT210
Save $3.99at Lowe's vs Home Depot on the same model
Home Depot$14.97homedepot.com online priceLowestLowe's$10.98lowes.com online price
Buy at Lowe's · $10.98Buy at Home Depot · $14.97Check price on Amazon

Checked Oct 30, 2026. Prices are each store's online price from its own website; in-store prices can vary by location. Prices change — check the store page before you buy.

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