mˈoːɹ kəmpˈækt, pɹˈiːbˈɑːndᵻd, pˈæks ʌv sˈænd ænd slˈæʃ ɔːɹ ɡɹˈævəl ɑːɹ ɐvˈeɪləbəl kəmˈɜːʃəli; sˌʌm ʌv ðiːz kæn ˈɔːlsoʊ fˈɔːɹm pˈɑːɹt ʌvðə pˈʌmp ˈɪnlɪt ɐsˈɛmbli.
More compact, pre-bonded, packs of sand and/or gravel are available commercially; some of these can also form part of the pump inlet assembly.