Welch Allyn Disposable Flow Transducers Suit PC-SPIRO CP200 by: Welch Allyn $148.48 BOX of 25 SKU WAL00137 Box25 - $317.85 Box100 - $317.85 Box25 Box100 Quantity For bulk pricing, use either the slider or the quantity below. 1 Quantity Enter the quantity you'd like, or click and drag the slider to find a quantity and price that's right for you. Price each Total: Savings: Item is out of stock Restocking Please note: Item is out of stock. Estimated dispatch 16 days from date of order. Add to cart Welch Allyn Spirometer Flow Transducer Welch Allyn Spirometer Flow Transducers for use with the Welch Allyn SPIRO-S and SPIRO-NS Spirometers.