Comparison : Item # SH 20B, 1 1/2 Inch (in) Hose Size Cold Rolled Zinc Plated Type SH Square Hole Steel Strainer
Item # SH 25B, 2 Inch (in) Hose Size Cold Rolled Zinc Plated Type SH Square Hole Steel Strainer
Item # SH 30B, 2 1/2 Inch (in) Hose Size Cold Rolled Zinc Plated Type SH Square Hole Steel Strainer
Item # SH 35B, 3 Inch (in) Hose Size Cold Rolled Zinc Plated Type SH Square Hole Steel Strainer
Item # SH 40B, 4 Inch (in) Hose Size Cold Rolled Zinc Plated Type SH Square Hole Steel Strainer