The left-arm pion rejector is consisted of two layers of lead glass blocks, 34 blocks for each layer. On each layer, 17 blocks on the left side and 17 blocks on the right side. As one look following a particles direction, block PiRL001 is at the lower momentum left-side, while PiRL0017 is at the higher momentum side left-side, PiRR001 is at the lower momentum right-side, while PiRR0017 is at the higher momentum right-side. For the second layer, PiRL0018 is on lower momentum left-side, while PiRL0034 is on high momentum left-side, PiRR0018 is on lower momentum right-side, PiRR0034 is on high momentum right-side.
| Block | HV | HV | Amplifier | Patch | ADC | Espace | Notes |
| Label | Channel | Setting | Channel | Panel | Channel | Variable | |
| PiRL001 | 3.0 | -1633 | 1-A1 | A1 | 23:0 | PRL1.ADC1 | |
| PiRL002 | 3.1 | -1587 | 1-A2 | A2 | 23:1 | PRL1.ADC2 | |
| PiRL003 | 3.2 | -1624 | 1-A3 | A3 | 23:2 | PRL1.ADC3 | |
| PiRL004 | 3.3 | -1449 | 1-A4 | A4 | 23:3 | PRL1.ADC4 | |
| PiRL005 | 3.4 | -1757 | 1-A5 | A5 | 23:4 | PRL1.ADC5 | |
| PiRL006 | 3.5 | -1355 | 1-A6 | A6 | 23:5 | PRL1.ADC6 | |
| PiRL007 | 3.6 | -1858 | 1-A7 | A7 | 23:6 | PRL1.ADC7 | |
| PiRL008 | 3.7 | -1532 | 1-B1 | A8 | 23:7 | PRL1.ADC8 | |
| PiRL009 | 3.8 | -1612 | 1-B2 | A9 | 23:8 | PRL1.ADC9 | |
| PiRL010 | 3.9 | -1422 | 1-B3 | A10 | 23:9 | PRL1.ADC10 | |
| PiRL011 | 3.10 | -1755 | 1-B4 | A11 | 23:10 | PRL1.ADC11 | |
| PiRL012 | 3.11 | -1384 | 1-B5 | A12 | 23:11 | PRL1.ADC12 | |
| PiRL013 | 4.0 | -1862 | 1-B6 | A13 | 23:12 | PRL1.ADC13 | |
| PiRL014 | 4.1 | -1433 | 1-B7 | A14 | 23:13 | PRL1.ADC14 | |
| PiRL015 | 4.2 | -1901 | 2-A1 | A15 | 23:14 | PRL1.ADC15 | |
| PiRL016 | 4.3 | -1600 | 2-A2 | A16 | 23:15 | PRL1.ADC16 | |
| PiRL017 | 4.4 | -1910 | 2-A3 | B1 | 23:16 | PRL1.ADC17 | |
| PiRR001 | 4.5 | -1568 | 2-A4 | B2 | 23:17 | PRL1.ADC18 | |
| PiRR002 | 4.6 | -1979 | 6-A1 | B3 | 23:18 | PRL1.ADC19 | |
| PiRR003 | 4.7 | -1542 | 2-A6 | B4 | 23:19 | PRL1.ADC20 | |
| PiRR004 | 10.8 | -1964 | 2-A7 | B5 | 23:20 | PRL1.ADC21 | special HV cable |
| PiRR005 | 4.9 | -1533 | 2-B1 | B6 | 22:36 | PRL1.ADC22 | |
| PiRR006 | 4.10 | -1868 | 6-A2 | B7 | 23:22 | PRL1.ADC23 | |
| PiRR007 | 4.11 | -1512 | 3-A6 | B8 | 23:23 | PRL1.ADC24 | |
| PiRR008 | 5.0 | -1920 | 2-B4 | B9 | 23:24 | PRL1.ADC25 | |
| PiRR009 | 5.1 | -1411 | 2-B5 | B10 | 23:25 | PRL1.ADC26 | |
| PiRR010 | 5.2 | -1673 | 2-B6 | B11 | 23:26 | PRL1.ADC27 | |
| PiRR011 | 5.3 | -1412 | 2-B7 | B12 | 23:27 | PRL1.ADC28 | |
| PiRR012 | 5.4 | -1711 | 3-A1 | B13 | 23:28 | PRL1.ADC29 | |
| PiRR013 | 5.5 | -1513 | 3-A2 | B14 | 23:29 | PRL1.ADC30 | |
| PiRR014 | 5.6 | -1810 | 3-A3 | B15 | 23:30 | PRL1.ADC31 | |
| PiRR015 | 5.7 | -1601 | 3-A4 | B16 | 23:31 | PRL1.ADC32 | |
| PiRR016 | 5.8 | -1850 | 3-A5 | C1 | 23:32 | PRL1.ADC33 | |
| PiRR017 | 5.9 | -1708 | 6-A3 | C2 | 23:33 | PRL1.ADC34 |
| Block | HV | HV | Amplifier | Patch | ADC | Espace | Notes |
| Label | Channel | Setting | Channel | Panel | Channel | Variable | |
| PiRL018 | 5.10 | -1523 | 3-B2 | C3 | 23:34 | PRL2.ADC1 | |
| PiRL019 | 5.11 | -1687 | 3-B3 | C4 | 23:35 | PRL2.ADC2 | |
| PiRL020 | 6.0 | -1539 | 3-B4 | C5 | 23:36 | PRL2.ADC3 | |
| PiRL021 | 6.1 | -1782 | 3-B5 | C6 | 23:37 | PRL2.ADC4 | |
| PiRL022 | 6.2 | -1531 | 3-B6 | C7 | 23:38 | PRL2.ADC5 | |
| PiRL023 | 6.3 | -1601 | 3-B7 | C8 | 23:39 | PRL2.ADC6 | |
| PiRL024 | 6.4 | -1459 | 4-A1 | C9 | 23:40 | PRL2.ADC7 | |
| PiRL025 | 6.5 | -1890 | 4-A2 | C10 | 23:41 | PRL2.ADC8 | |
| PiRL026 | 6.6 | -1490 | 4-A3 | C11 | 23:42 | PRL2.ADC9 | |
| PiRL027 | 6.7 | -1765 | 4-A4 | C12 | 23:43 | PRL2.ADC10 | |
| PiRL028 | 6.8 | -1451 | 4-A5 | C13 | 23:44 | PRL2.ADC11 | |
| PiRL029 | 6.9 | -1856 | 4-A6 | C14 | 23:45 | PRL2.ADC12 | |
| PiRL030 | 6.10 | -1561 | 4-A7 | C15 | 23:46 | PRL2.ADC13 | |
| PiRL031 | 6.11 | -2002 | 4-B1 | C16 | 23:47 | PRL2.ADC14 | |
| PiRL032 | 9.0 | -1609 | 4-B2 | D1 | 23:48 | PRL2.ADC15 | |
| PiRL033 | 9.1 | -1967 | 4-B3 | D2 | 23:49 | PRL2.ADC16 | |
| PiRL034 | 9.2 | -2147 | 4-B4 | D3 | 23:50 | PRL2.ADC17 | |
| PiRR018 | 9.3 | -1493 | 4-B5 | D4 | 23:51 | PRL2.ADC18 | |
| PiRR019 | 9.4 | -1467 | 4-B6 | D5 | 23:52 | PRL2.ADC19 | |
| PiRR020 | 9.5 | -1713 | 4-B7 | D6 | 23:53 | PRL2.ADC20 | |
| PiRR021 | 9.6 | -1474 | 5-A1 | D7 | 23:54 | PRL2.ADC21 | |
| PiRR022 | 9.7 | -1891 | 5-A2 | D8 | 23:55 | PRL2.ADC22 | |
| PiRR023 | 9.8 | -1572 | 5-A3 | D9 | 23:56 | PRL2.ADC23 | |
| PiRR024 | 9.9 | -1730 | 5-A4 | D10 | 23:57 | PRL2.ADC24 | |
| PiRR025 | 9.10 | -1586 | 5-A5 | D11 | 23:58 | PRL2.ADC25 | |
| PiRR026 | 9.11 | -1804 | 5-A6 | D12 | 23:59 | PRL2.ADC26 | |
| PiRR027 | 10.0 | -1634 | 5-A7 | D13 | 23:60 | PRL2.ADC27 | |
| PiRR028 | 10.1 | -1810 | 5-B1 | D14 | 23:61 | PRL2.ADC28 | |
| PiRR029 | 10.2 | -1494 | 5-B2 | D15 | 23:62 | PRL2.ADC29 | |
| PiRR030 | 10.3 | -2009 | 5-B3 | D16 | 23:63 | PRL2.ADC30 | |
| PiRR031 | 10.4 | -1731 | 5-B4 | E1 | 22:32 | PRL2.ADC31 | |
| PiRR032 | 10.5 | -1722 | 5-B5 | E2 | 22:33 | PRL2.ADC32 | |
| PiRR033 | 10.6 | -1446 | 5-B6 | E3 | 22:34 | PRL2.ADC33 | |
| PiRR034 | 10.7 | -1686 | 5-B7 | E4 | 22:35 | PRL2.ADC34 |