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C21 Casing Hangers

C-21 Casing Hangers

GBI C21, or C-21, casing hangers are a wrap-around style with slip segments to bite into the casing. They are a non-automatic sealing solution used with a separate seal assembly H-Packoff and recommended for lightweight applications.

Our C-21 hangers are available

  • In all standard API casing sizes as well for custom wellheads
  • Non-Monogrammed and API Monogrammed
  • M/C: AA-HH, T/C: P-U, PSL 1-3, PR2

The H Packoff utilizes CS O-Rings seals for ID and OD and is available in all API casing sizes for M/C: AA-HH. Our C21 casing hangers and H-Packoff have been successfully used by large and small Wellhead Manufacturers and Repair facilities worldwide in the Oil & Gas Industry for over 35 years.

Call our experts today to learn more about Wellhead C-21 Casing Hangers products, and C-21 Low-Capacity Casing Hanger for Oil & Gas Wellhead equipment.

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C21 Casing Hangers
H -Packoff
Closed C-21 Casing Hanger
Open C-21 Casing Hanger

C21 Casing Hanger Specifications

All sizes are available API Monogrammed, PSL 1-3, Material class AA, BB, CC, DD, EE, FF, HH

Size GBI Part #
7” x  2-3/8” A2333
7” x  2-7/8” A2334
7” x  3-1/2” A2335
7” x 4-1/2”  A4781
9” x  2-3/8” A2197
9” x  2-7/8” A2198
9” x  3-1/2” A2199
9” x  4” A2194
9” x  4-1/2” A2196
9” x  5” A2200
9” x  5-1/2” A2201
11” x  2-3/8” H2976*
11” x  2-7/8” H2977*
11” x  3-1/2” H2978*
11” x  4” H2206*
11” x  4-1/2 H2133*
11” x  5” H2208*
11” x  5-1/2” H2134*
11” x  5-3/4” H2136*
11” x 6” H2209*
Size GBI Part #
11” x  6-5/8” H2205*
11” x  7” H2211*
11” x 7-1/4” TBA
11” x  7-5/8” H2213*
11” x  7-3/4” H2214*
13-5/8” x  4-1/2” H2281*
13-5/8” x  5” H2579*
13-5/8” x  5-1/2” H2282*
13-5/8” x  7” H2283*
13-5/8” x  7-5/8” H2284*
13-5/8” x  7-3/4” H2289*
13-5/8” x  8-5/8” H2286*
13-5/8” x  9-5/8” H2287*
13-5/8” x  9-3/4” H2288*
13-5/8” x  9-7/8” H2138*
13-5/8” x  10-3/4” A2210
16-3/4” x 6-5/8 & 7” A2223
16-3/4” x  7-5/8” A2571
16-3/4” x  9-5/8” A2586
16-3/4” x  10-3/4” A2587
Size GBI Part #
16-3/4” x  11-3/4” A2588
16-3/4” x  11-7/8” A2593
16-3/4” x  12-3/4” A2596
16-3/4” x  13-3/8” A2215
16-3/4” x  13-5/8” A2598
18-3/4” x 13-3/8” A2599
18-3/4” x 13-5/8” TBA
21-1/4” x 9-5/8” A2604
21-1/4” x  10-3/4” A2589
21-1/4” x  11-3/4” A2590
21-1/4” x  13-3/8” A2591
21-1/4” x  13-5/8” A2592
21-1/4” x 14” A4771
21-1/4” x  16” A2930
21-1/4” x  16-3/4” A2139
24” x  18-5/8” A2581
26” x  16” A2573
26” x  18-5/8” A2911
26” x  20” A2141
30” x  24” A2142
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H Packoff Sizes for C-21 Casing Hangers Specifications

All sizes are available API Monogrammed, PSL 1-3, Material class AA, BB, CC, DD, EE, FF, HH

Size GBI Part #
7” x  2-3/8” A2371
7” x  2-7/8” A2372
7” x  3-1/2” A2373
7” x 4-1/2” A2374
9” x  4-1/2” A2226
9” x  5” A2225
9” x  5-1/2” A2227
11” x  2-3/8” A2972
11” x  2-7/8” A2971
11” x  3-1/2” A2973
11” x  4” A2228
11” x  4-1/2 A2229
11” x  5” A2231
11” x  5-1/2” A2232
11” x  5-3/4” A2237
11” x 6” A2224
11” x  6-5/8” A2230
11” x  7” A2233
Size GBI Part #
11” x  7-5/8” A2234
11” x  7-3/4” A2217
13-5/8” x 2-3/8” A2301
13-5/8” x 2-7/8” A2302
13-5/8” x 3-1/2” A2303
13-5/8” x  4-1/2” A2356
13-5/8” x  5-1/2” A2357
13-5/8” x  7” A2358
13-5/8” x  7-5/8” A2359
13-5/8” x  7-3/4” A2352
13-5/8” x  8-5/8” A2360
13-5/8” x  9-5/8” A2361
13-5/8” x  9-3/4” A2351
13-5/8” x  9-7/8” A2239
13-5/8” x  10-3/4” A2235
16-3/4” x 7” A2369
16-3/4” x 7-5/8” A2377
16-3/4” x  9-5/8” A2362
Size GBI Part #
16-3/4” x  10-3/4” A2363
16-3/4” x  11-3/4” A2364
16-3/4” x  11-7/8” A2368
16-3/4” x  12-3/4” A2220
16-3/4” x  13-3/8” A2280
16-3/4” x  13-5/8” A2275
21-1/4” x 9-5/8” A2375
21-1/4” x  10-3/4” A2365
21-1/4” x  11-3/4” A2366
21-1/4” x  13-3/8” A2367
21-1/4” x  13-5/8” A2285
21-1/4” x  16” A2909
21-1/4” x  16-3/4” A2242
24” x  18-5/8” A2583
26” x  18-5/8” A2914
26” x  20” A2243
30” x  24” A2244
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Pearland, TX 77581

Mailing Address

PO Box 1622
Friendswood, TX 77549