Filter HMEs Code Description Case Quantity 1942 Filta-Therm® 99.999% BFE/VFE Resistance wet/ dry 2.5 cm H2O. 40 1941 Filta-Therm® same as above with additional CO2 - port 40 1906 Filta-Therm® with integrated Y-piece, designed to reduce weight and dead space 40 1942-T Filta-Therm® with flextube patient connection 20 1941-T Filta-Therm® with CO2 - port and flextube patient connection 20 1906-T Filta-Therm® with integrated Y-piece and a flextube patient connection 20 1841 Clear-Therm® 99.99% BFE/VFE, resistance wet/dry: 2.4 cm H2O, 32.1 mg moisture return @ 500ml Vt 50 1841-T Clear-Therm™ with Flextube 99.99% BFE/VFE, resistance wet/dry: 2.4 cm H2O, 32.1 mg moisture return @ 500ml Vt 20 1831 Clear-Therm Mini™ 99.9% BFE/VFE, resistance wet/dry: 1.2 cm H2O, 32 mg moisture return @ 250ml Vt 40 1831-T Clear-Therm Mini™ with Flextube 99.9% BFE/VFE, resistance wet/dry: 1.2 cm H2O, 32 mg moisture return @ 250ml Vt 20 1831-M Clear-Therm Mini™ + Micro Mount with Flextube 99.9% BFE/VFE, resistance wet/dry: 1.2 cm H2O, 32 mg moisture return @ 250ml Vt 20