Overview Reviews Product Description Lower flapper valve weight fits Kolstrand's Tyee #1 Pump - Part No. AKPTDPP-1K. Product Videos Custom Field Product Reviews Write a Review Write a Review × Kolstrand Lower Flapper Valve Weight for Tyee #1 Pump - 1-K Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *