Bree Engineering model Number 800589 is a diplexer for the GPS bands of L1 and L2. Insertion loss is less than 2.0 dBa across the bands. Rejection for L1 is 30 dBc at 1425 and 1800 MHz. Rejection for L2 is 30 dBc at 1110 and 1370 MHz. The unit will survive a Sn63 re-flow environment. The size is 1.0 x 0.5 x 0.4 inches.