Swimquip Filter Grid Element Center Port - 18 x 11 Inches gallons-per-minute_90-99 It sets hard in bout

It sets hard in bout 15 minutes

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This helps eliminate wasted backwash water

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Swimquip Filter Grid Element Center Port - 18 x 11 Inches gallons-per-minute_90-99 It sets hard in boutThis is a Swimquip compatible filter element grid with center port measuring 18 x 11 inches. The thickness of the grid is . 875 inches. Universal Filter Grids for Diatomaceous Earth filters feature a reinforced center core for added durability and chemical resistance, and sonic welded seams to prevent fraying. Their proprietary D. E. grid cloth outlasts all others. They have superior strength fabric and heavy nylon stiches. TIP: Place filter manifold