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4-way Manifold Cluster: 1" Pipe, 3/8" x (4) valves, 1/4" thermocouple port
2-way Manifold Cluster: 1/2" x 3/8" x (2) Manifold, with 1/4" center thermocouple port
2-way Manifold Cluster 3/4 x 3/8" x (2)
2-Way Manifold Cluster 1/2" x 3/8" x (2) (no hole / blind port)