| 18311 | TUBING ADAPTER KIT SLIP ON 0.25IN OD X 1.12IN LONG |  | 9.98 | 4.99 | |
| 21116 | PROBE, STATIC PRESSURE 2IN SMOOTH | INFO | 10.29 | 5.15 | |
| 21116-112 | PROBE, STATIC PRESSURE 2IN BARBED | INFO | 19.25 | 9.63 | |
| 21117 | PROBE, STATIC PRESSURE 4IN |  | 11.62 | 5.81 | |
| 21117-112 | PROBE STATIC PRESSURE 4IN FOR 1/8 TO 1/4 TUBE BARB | INFO | 25.89 | 12.95 | |
| 21118 | PROBE, STATIC PRESSURE 6IN |  | 12.62 | 6.31 | |
| 21118-112 | PROBE, STATIC PRESSURE 6IN BARBED | INFO | 13.28 | 6.64 | |
| 21119 | PROBE, STATIC PRESSURE 8IN SMOOTH | INFO | 14.61 | 7.30 | |
| 21119-112 | PROBE, STATIC PRESSURE 8IN BARBED |  | 23.23 | 11.62 | |
| 21120 | DUCT IMPACT TUBE 2IN SMOOTH | INFO | 14.27 | 7.14 | |
| 21120-112 | DUCT IMPACT TUBE 2IN BARBED | INFO | 23.57 | 11.78 | |
| 21121-112 | PROBE IMPACT PRESSURE 4IN FOR 1/8 TO 1/4 TUBE BARB |  | 24.78 | 12.39 | |
| 21122 | 4 IN. ALUMINUM IMPACT TUBE |  | 12.08 | 6.04 | |
| 21122-112 | PROBE IMPACT PRESSURE 6IN FOR 1/8 TO 1/4 TUBE BARB |  | 24.75 | 12.37 | |
| 21123 | DUCT IMPACT TUBE |  | 14.47 | 7.24 | |
| 21123-112 | PROBE IMPACT PRESSURE 8IN FOR 1/8 TO 1/4 TUBE BARB |  | 30.63 | 15.32 | |
| 25702 | TUBING ADAPTER KIT FOR 1/4IN ID OR 3/8IN ID TUBING | INFO | 21.24 | 10.62 | |
| 60681 | PRESSURE SENSING PROBE KIT |  | 25.92 | 12.96 | |
| A-201 | RUBBER TUBE 3/16 INCH 9 FT | INFO | 20.00 | 10.00 | |
| A-210 | ALUMINUM TUBE 1/4 INCH 5 FT | INFO | 14.00 | 7.00 | |
| A-240-A | PERFERATED COOLING TOWER | INFO | 105.87 | 52.93 | |
| A-266 | DIGIHELIC SURFACE MTG BRACKET | INFO | 75.00 | 37.50 | |
| A-298 | FLAT FLUSH MOUNTING BRACKET | INFO | 75.00 | 37.50 | |
| A-299 | BRACKET 4.5IN |  | 80.00 | 40.00 | |
| A-300 | FLUSH MOUNT MAGNEHELIC BRACKET |  | 70.00 | 35.00 | |
| A-301-K | STATIC PRESSURE TIP, 1/4IN COMPRESSION |  | 29.32 | 14.66 | |
| A-301-SS | STAINLESS STEEL STATIC PRESSURE TIP |  | 160.00 | 80.00 | |
| A-302-K | STATIC PRESSURE TIP, 1/4IN BARB |  | 20.55 | 8.79 | |
| A-302F-A | 4" STATIC PRESSURE TIP WITH FLANGE | INFO | 25.00 | 12.50 | |
| A-303 | PORTABLE STATIC TIP |  | 25.00 | 12.50 | |
| A-305 | STATIC PRESSURE TIP | INFO | 150.00 | 75.00 | |
| A-306 | OUTDOOR AIR STATIC PRESSURE KIT |  | 140.00 | 49.00 | |
| A-308-K | STATIC PRESSURE FITTING |  | 12.47 | 6.24 | |
| A-310B | 3 WAY VENT VALVE PLASTIC 10PSI | INFO | 30.00 | 15.00 | |
| A-3145K | A-301-K WITH A-345-K |  | 45.88 | 22.94 | |
| A-3245K | A-302-K WITH A-345-K |  | 39.59 | 19.79 | |
| A-345-K | MOUNTING FLANGE FOR A-301-K & A-302-K |  | 16.75 | 8.37 | |
| A-362 | MIMIHELIC II BRACKET | INFO | 35.00 | 17.50 | |
| A-368 | MOUNTING PLATE FOR MAGNEHELIC | INFO | 19.00 | 9.50 | |
| A-368-K | MOUNTING PLATE FOR DIFF PRESS GAUGE |  | 17.50 | 8.75 | |
| A-369 | BRACKET STAND/HANG ALUM | INFO | 35.00 | 17.50 | |
| A-370 | FLUSH MTG BRACKET 4.75IN |  | 90.00 | 45.00 | |
| A-371 | SURFACE MOUNTING BRACKET |  | 100.00 | 50.00 | |
| A-3845K | A-308-K WITH A-345-K |  | 29.32 | 14.66 | |
| A-389 | STAND-OFF BRKT FOR 1800 SWITCH |  | 20.00 | 10.00 | |
| A-399 | DUCT PRESSURE MONITOR KIT FOR 1900-MR SERIES |  | 95.00 | 47.50 | |
| A-402A | NYLON CARRY POUCH | INFO | 110.00 | 55.00 | |
| A-417A | SS WALL PICKUP PORT |  | 25.00 | 12.50 | |
| A-419 | CEILING MOUNT COVER |  | 25.00 | 12.50 | |
| A-420A | STATIC PRESS PICKUP FOR OUTSIDE |  | 55.00 | 27.50 | |
| A-432 | PORTABLE CASE FOR MAGNEHELIC |  | 130.00 | 65.00 | |
| A-435 | FIELD UPGRADEABLE LCD FOR MS | INFO | 120.00 | 60.00 | |
| A-464 | FLUSH MOUNT KIT FOR MAGNEHELICS |  | 50.00 | 25.00 | |
| A-465 | FLUSH MOUNT SPACE PRESSURE SENSOR |  | 25.00 | 12.50 | |
| A-480 | PLASTIC STATIC PRESSURE TIP |  | 3.00 | 1.50 | |
| A-481 | A-481 INSTALLER KIT | INFO | 10.00 | 5.00 | |
| A-489 | 4IN 303SS STRAIGHT STATIC PRESSURE TIP W FLANGE |  | 15.00 | 7.50 | |
| A-491 | 6 PRESSURE TIP KIT |  | 15.00 | 7.50 | |
| A-493 | 8 PRESSURE TIP KIT |  | 17.00 | 8.50 | |
| A-601 | MANUAL RESET SWITCH |  | 130.00 | 65.00 | |
| A-602 | AIR FILTER KIT |  | 75.00 | 37.50 | |
| A-605 | AIR FILTER KIT |  | 95.00 | 47.50 | |
| AST-1 | STATIC PRESSURE PROBE |  | 67.91 | 33.96 | |
| QAC22 | METRIC! DIFF PRESS SWITCH (20-300 PA) | INFO | 63.00 | 31.50 | |
| RPS | ROOM STATIC PRESSURE SENSOR |  | 32.00 | 14.21 | |
| RPS-I | ROOM STATIC PRESSURE, IVORY, PLASTIC, WALL MOUNT |  | 50.84 | 25.42 | |
| RPS-W | ROOM STATIC PRESSURE, WHITE, PLASTIC, WALL-MOUNT |  | 51.77 | 25.88 | |
| SD-01 | SURGE DAMPENER |  | 91.27 | 45.64 | |